After we updated to Unity 2019.3.0f5 the enter playmode got a lot slower. We're using the new playmode settings to not reload domain and scene. On f3 the game would've played almost instantaneously but now we're gonna have to wait 5-6 seconds to play the game. I actually opened the game on the f3 again to make sure I didn't change anything in the project that could do this. My guess is that it's because of the new change in sprite atlases that removed the storedHash that would've changed if it's built on different machines and would've cause problems when using a source control. This is what I'm getting in the profiler when using it to profile the Editor itself: We have a lot of sprites so this makes sense to have a little bit of loading at the start, but that big EnterPlayMode pause isn't there when we're loading the game on f3. Does anyone else have this problem? I'm trying to see if I can reproduce this in a small project and file a bug report.