I tried all the recommended steps and potential solutions suggested over the forums. However, this problem still persists. Its been 5 days and I am still trying to find why it happens only in build export and not in unity editor.

Issue Details:

'IntroductionHUD' (Canvas) is the canvas of this scene. 'TestText' (TextMeshPro) is used to test if the 'IntroModalScreenPanel' (Image) is active or not. 'IntroModalScreenManager' (Empty Object) has the script to handle activation and deactivation of IntroModalScreenPanel (Image) and its children.

There is an awake method in the 'IntroModalScreenManager' script which sets the 'IntroModalScreenPanel' and its children to inactive.

And there are other methods in the script which activates and deactivates the 'IntroModalScreenPanel' and its children accordingly. The objects are activated and deactivated using SetActive(bool) in the script. The objects are assigned through the inspector.

For some reason, which I have no idea of, the 'IntroModalScreenPanel' doesn't get activated after it deactivates in the awake method. Additionally, this weird problem only exists when I do a build export. Whereas, it works perfectly fine and as expected in Unity Editor.

The 'TestText' is used to test if the 'IntroModalScreenPanel' is active or not and every time it turns to be not active in the build export.

Another weird part is (if you see the hierarchy snapshot) the 'Background' and 'TestText' works fine being the children of the same canvas object (IntroductionHUD) as of 'IntroModalScreenManager'. As per my understanding the problem is only with the 'IntroModalScreenPanel' and its children.

I would really appreciate if anyone could advise on this. Any suggestions will do.

Script:

using System;
using UnityEngine;
using UnityEngine.UI;
using TMPro;

public class IntroModalScreenManager : MonoBehaviour
{
    public bool IsIntroModalScreenActive() { return _isIntroModalScreenActive; }

    //Bool variables...
    [SerializeField] private bool _isIntroModalScreenActive;

    //INTRO MODAL SCREEN MANAGER
    [Header("INTRO MODAL SCREEN MANAGER")]
    [SerializeField] private GameObject _introModalScreenPanel;
    [SerializeField] private GameObject _introModalScreenHeader;
    [SerializeField] private GameObject _introModalScreenBody;
    [SerializeField] private GameObject _introModalScreenFooter;

    //INTRO MODAL SCREEN PANEL
    [Header("INTRO MODAL SCREEN PANEL")]
    [SerializeField] private Image _introModalScreenPanelImage;

    //HEADER
    [Header("HEADER")]
    [SerializeField] private Image _introModalScreenPanelImageHeaderImage;
    [SerializeField] private TextMeshProUGUI _introModalScreenPanelImageHeaderImageHeaderText;

    //BODY
    [Header("BODY")]
    [SerializeField] private Image _introModalScreenPanelImageBodyImage;
    [SerializeField] private Image _introModalScreenPanelImageBodyImageBodyImage;
    [SerializeField] private TextMeshProUGUI _introModalScreenPanelImageBodyImageBodyText;

    //FOOTER
    [Header("FOOTER")]
    [SerializeField] private Image _introModalScreenPanelImageFooterImage;
    [SerializeField] private Button _introModalScreenPanelImageFooterImageFooterNegativeButton;
    [SerializeField] private TextMeshProUGUI _introModalScreenPanelImageFooterImageFooterNegativeButtonText;
    [SerializeField] private Button _introModalScreenPanelImageFooterImageFooterAlternateButton;
    [SerializeField] private TextMeshProUGUI _introModalScreenPanelImageFooterImageFooterAlternateButtonText;
    [SerializeField] private Button _introModalScreenPanelImageFooterImageFooterPositiveButton;
    [SerializeField] private TextMeshProUGUI _introModalScreenPanelImageFooterImageFooterPositiveButtonText;

    public static IntroModalScreenManager Instance { get; private set; }

    private void Awake()
    {
        if(Instance != null && Instance != this)
        {
            Destroy(this);
        }
        else
        {
            Instance = this;
        }

        DeactivateModalScreenDisplay();

        //DontDestroyOnLoad(this.gameObject);
    }

    //Called by Awake() in the begining and by other script to deactivate modal screen when needed
    public void DeactivateModalScreenDisplay()
    {
        DeactivateAndClearAll();

        _introModalScreenPanel.SetActive(false);

        _isIntroModalScreenActive = false;
    }

    void DeactivateAndClearAll()
    {
        DeactivateHeader();
        DeactivateBody();
        DeactivateFooter();
    }

    //Called by another script to activate modal screen when needed
    public void ActivateModalScreenDisplay(bool isBook, bool isBookWithAlternateOption, 
        bool isSinglePage, bool isSinglePageWithNegativeOption, bool isSinglePageWithNegativeAndAlternateOption, 
        bool needBodyImage, 
        string headerText = "", 
        Sprite bodyImageSprite = null, string bodyText = "", 
        string footerNegativeButtonText = "", string footerAlternateButtonText = "", string footerPositiveButtonText = "", 
        Action negativeActionOption = null, Action alternateActionOption = null, Action positiveActionOption = null)
    {
        _introModalScreenPanel.SetActive(true);

        //Book - has front and back navigation options
        if (isBook)
        {
            ActivateHeader(headerText);
            ActivateBody(needBodyImage, true, bodyImageSprite, bodyText);
            ActivateFooter(true, false, true, footerNegativeButtonText, footerAlternateButtonText, footerPositiveButtonText,
                negativeActionOption, alternateActionOption, positiveActionOption);
        }
        //BookWithAlternateOption - Book with an addition of alternate option. (Eg: Skip button)
        else if (isBookWithAlternateOption)
        {
            ActivateHeader(headerText);
            ActivateBody(needBodyImage, true, bodyImageSprite, bodyText);
            ActivateFooter(true, true, true, footerNegativeButtonText, footerAlternateButtonText, footerPositiveButtonText,
                negativeActionOption, alternateActionOption, positiveActionOption);
        }
        //SinglePage - has one button (positive option - Eg: Continue, start, etc. buttons)
        else if (isSinglePage)
        {
            ActivateHeader(headerText);
            ActivateBody(needBodyImage, true, bodyImageSprite, bodyText);
            ActivateFooter(false, false, true, footerNegativeButtonText, footerAlternateButtonText, footerPositiveButtonText, 
                negativeActionOption, alternateActionOption, positiveActionOption);
        }
        //SinglePageWithNegativeOption - Single page with an addition of negative option (Eg: Confirmations)
        else if (isSinglePageWithNegativeOption)
        {
            ActivateHeader(headerText);
            ActivateBody(needBodyImage, true, bodyImageSprite, bodyText);
            ActivateFooter(true, false, true, footerNegativeButtonText, footerAlternateButtonText, footerPositiveButtonText, 
                negativeActionOption, alternateActionOption, positiveActionOption);
        }
        //SinglePageWithNegativeAndAlternateOption - Single page with negative option and an aditional alternate button (Eg: 3rd option in any choice making scenes)
        else if (isSinglePageWithNegativeAndAlternateOption)
        {
            ActivateHeader(headerText);
            ActivateBody(needBodyImage, true, bodyImageSprite, bodyText);
            ActivateFooter(true, true, true, footerNegativeButtonText, footerAlternateButtonText, footerPositiveButtonText,
                negativeActionOption, alternateActionOption, positiveActionOption);
        }

        _isIntroModalScreenActive = true;
    }


    void ActivateHeader(string headerText)
    {
        //Only if the header text has some value, this component will be active... Implemented this only for header & footer, as header & footer is used for all types of modal screen layouts.
        if(headerText != "" && headerText != null)
        {
            //HEADER
            _introModalScreenHeader.SetActive(true);//Header Object

            _introModalScreenPanelImageHeaderImageHeaderText.gameObject.SetActive(true);//Header Text Object
            _introModalScreenPanelImageHeaderImageHeaderText.text = headerText;//Header Text
        }
    }

    void DeactivateHeader()
    {
        _introModalScreenPanelImageHeaderImageHeaderText.text = "";//Header Text
        if (_introModalScreenPanelImageHeaderImageHeaderText.gameObject.activeSelf)
        {
            _introModalScreenPanelImageHeaderImageHeaderText.gameObject.SetActive(false);//Header Text Object
        }

        if (_introModalScreenHeader.activeSelf)
        {
            _introModalScreenHeader.SetActive(false);//Header Object
        }
    }

    void ActivateBody(bool needBodyImage, bool needBodyText, Sprite bodyImageSprite, string bodyText)
    {
        //BODY
        _introModalScreenBody.SetActive(true);//Body Object

        _introModalScreenPanelImageBodyImageBodyImage.gameObject.SetActive(needBodyImage);//Body Image Object
        if (_introModalScreenPanelImageBodyImageBodyImage.gameObject.activeSelf)//Body Image Object Image Sprite
        { _introModalScreenPanelImageBodyImageBodyImage.sprite = bodyImageSprite; }

        _introModalScreenPanelImageBodyImageBodyText.gameObject.SetActive(needBodyText);//Body Text Object
        if (_introModalScreenPanelImageBodyImageBodyText.gameObject.activeSelf)//Body Text Object Text
        { _introModalScreenPanelImageBodyImageBodyText.text = bodyText; }
    }

    void DeactivateBody()
    {
        _introModalScreenPanelImageBodyImageBodyText.text = "";
        if (_introModalScreenPanelImageBodyImageBodyText.gameObject.activeSelf)
        {
            _introModalScreenPanelImageBodyImageBodyText.gameObject.SetActive(false);//Body Text Object
        }

        _introModalScreenPanelImageBodyImageBodyImage.sprite = null;
        if (_introModalScreenPanelImageBodyImageBodyImage.gameObject.activeSelf)
        {
            _introModalScreenPanelImageBodyImageBodyImage.gameObject.SetActive(false);//Body Image Object
        }

        if (_introModalScreenBody.activeSelf)
        {
            _introModalScreenBody.SetActive(false);//Body Object
        }
    }

    void ActivateFooter(bool needFooterNegativeButton, bool needFooterAlternateButton, bool needFooterPositiveButton, 
        string footerNegativeButtonText, string footerAlternateButtonText, string footerPositiveButtonText,
        Action negativeActionOption, Action alternateActionOption, Action positiveActionOption)
    {
        //FOOTER
        _introModalScreenFooter.SetActive(true);//Footer Object

        //When this footer button is needed, only if the footer text and action has some value, this component will be active... Implemented this only for header & footer, as header & footer is used for all types of modal screen layouts.
        if (needFooterNegativeButton && footerNegativeButtonText != null && footerNegativeButtonText != "" && negativeActionOption != null)
        {
            _introModalScreenPanelImageFooterImageFooterNegativeButton.gameObject.SetActive(needFooterNegativeButton);//Footer Negative Button

            if (_introModalScreenPanelImageFooterImageFooterNegativeButton.gameObject.activeSelf)
            {
                _introModalScreenPanelImageFooterImageFooterNegativeButtonText.text = footerNegativeButtonText;//Footer Negative Button Text
                _introModalScreenPanelImageFooterImageFooterNegativeButton.onClick.AddListener(new UnityEngine.Events.UnityAction(negativeActionOption));//Add listener to the button's OnClick
            }
        }
        else
        {
            _introModalScreenPanelImageFooterImageFooterNegativeButton.gameObject.SetActive(needFooterNegativeButton);//Footer Negative Button
        }

        //When this footer button is needed, only if the footer text and action has some value, this component will be active... Implemented this only for header & footer, as header & footer is used for all types of modal screen layouts.
        if (needFooterAlternateButton && footerAlternateButtonText != null && footerAlternateButtonText != "" && alternateActionOption != null)
        {
            _introModalScreenPanelImageFooterImageFooterAlternateButton.gameObject.SetActive(needFooterAlternateButton);//Footer Alternate Button

            if (_introModalScreenPanelImageFooterImageFooterAlternateButton.gameObject.activeSelf)
            {
                _introModalScreenPanelImageFooterImageFooterAlternateButtonText.text = footerAlternateButtonText;//Footer Alternate Button Text
                _introModalScreenPanelImageFooterImageFooterAlternateButton.onClick.AddListener(new UnityEngine.Events.UnityAction(alternateActionOption));//Add listener to the button's OnClick
            }
        }
        else
        {
            _introModalScreenPanelImageFooterImageFooterAlternateButton.gameObject.SetActive(needFooterAlternateButton);//Footer Alternate Button
        }

        //When this footer button is needed, only if the footer text and action has some value, this component will be active... Implemented this only for header & footer, as header & footer is used for all types of modal screen layouts.
        if (needFooterPositiveButton && footerPositiveButtonText != null && footerPositiveButtonText != "" && positiveActionOption != null)
        {
            _introModalScreenPanelImageFooterImageFooterPositiveButton.gameObject.SetActive(needFooterPositiveButton);//Footer Positive Button

            if (_introModalScreenPanelImageFooterImageFooterPositiveButton.gameObject.activeSelf)
            {
                _introModalScreenPanelImageFooterImageFooterPositiveButtonText.text = footerPositiveButtonText;//Footer Positive Button Text
                _introModalScreenPanelImageFooterImageFooterPositiveButton.onClick.AddListener(new UnityEngine.Events.UnityAction(positiveActionOption));//Add listener to the button's OnClick
            }
        }
        else
        {
            _introModalScreenPanelImageFooterImageFooterPositiveButton.gameObject.SetActive(needFooterPositiveButton);//Footer Positive Button
        }
    }

    void DeactivateFooter()
    {
        #region COMMENTED PART - NEDD TO RESOLVE LATER - KEPT FOR FUTURE UPGRADE...
        //To make the button not be in selected state after clicking once: is to set it's Navigation drop down option from inspector to none.
        //Or can do it by code as done for each button below.
        //Unfortunately, I tried, but it doesn't work that way. Maybe I did it wrong. For now lets do the inspector method.
        //https://forum.unity.com/threads/clicking-a-button-leaves-it-in-mouseover-state.285167/
        #endregion

        _introModalScreenPanelImageFooterImageFooterNegativeButton.onClick.RemoveAllListeners();//Remove all listeners to the button's OnClick
        //var nav = _introModalScreenPanelImageFooterImageFooterNegativeButton.navigation;
        //nav.mode = Navigation.Mode.None;
        if (_introModalScreenPanelImageFooterImageFooterNegativeButton.gameObject.activeSelf)
        {
            _introModalScreenPanelImageFooterImageFooterNegativeButton.gameObject.SetActive(false);//Footer Negative Button
        }

        _introModalScreenPanelImageFooterImageFooterAlternateButton.onClick.RemoveAllListeners();//Remove all listeners to the button's OnClick
        //nav = _introModalScreenPanelImageFooterImageFooterAlternateButton.navigation;
        //nav.mode = Navigation.Mode.None;
        if (_introModalScreenPanelImageFooterImageFooterAlternateButton.gameObject.activeSelf)
        {
            _introModalScreenPanelImageFooterImageFooterAlternateButton.gameObject.SetActive(false);//Footer Alternate Button
        }

        _introModalScreenPanelImageFooterImageFooterPositiveButton.onClick.RemoveAllListeners();//Remove all listeners to the button's OnClick
        //nav = _introModalScreenPanelImageFooterImageFooterPositiveButton.navigation;
        //nav.mode = Navigation.Mode.None;
        if (_introModalScreenPanelImageFooterImageFooterPositiveButton.gameObject.activeSelf)
        {
            _introModalScreenPanelImageFooterImageFooterPositiveButton.gameObject.SetActive(false);//Footer Positive Button
        }

        if (_introModalScreenFooter.activeSelf)
        {
            _introModalScreenFooter.SetActive(false);//Footer Object
        }
    }
}

CodePudding user response：

The order in which scripts are run is not guaranteed, and are very likely to be different between editor and builds.

The only guarantee you have is that all Awakes() will run before first Start(), use it to your advantage. As a rule of thumb, initialise the object in Awake, but only interact with other objects in Start() and never in Awake() as other objects might not have been initialised yet, especially if you use Singletons.

It is likely that, because your script start order is different in build,

CodePudding user response：

Open up Edit/Project Settings and go to Script Execution Order

Add all of these scripts to the list, and put them in the order that you need to them run in. Then, test it in the editor. It should now behave the same way in editor as in the build, so if it works in the editor it should work in the build. If it doesn't work, change the orders about first.