This is really bizarre, this image is not even in the atlas but somehow is being used in the first frame of these particles when playing them
If the engine doesn’t set the texture, it will use the texture already set.
If you do not have the steam logo in the app at all, then it’s weird I admit, but it might use whatever is in the GPU memory there then (I’m guessing).
It does not happen at all in 180.
We haven’t changed anything render related (only the OpenGL version from 3.3. to 3.1+). My guess is that we’ve uncovered an old issue that been working by chance before.