Using Overlay Texture (on a dedicated Render track) on Unity 2021.1: the texture (png) shows up OK in playmode & editor, BUT fails to show up in the actual Windows build. What’s with that?
Hey. Hmm. That is weird. Just to rule out a few things, can you please test if the Rendering -> “Screen Fader” works for you in build (it pretty much uses the same code as the overlay image).
Hmmm. Do you mean the png file is missing from the build and not included at all?
If so it means that somehow Unity is not including it. Can you please try moving the png file in a “Resources” folder (which contents are always included in the build no matter of referencing them or not).
I just tried a fresh project of Unity 2021.2 and a .png Image Overlay (not in resources just somewhere in assets folder) shows up fine in a Windows build. I honestly can not reproduce this issue but I haven’t explicitly tried in 2021.1 but rather 2021.2. Have you tried in any different Unity version other than the one you mentioned?