What did I do to start getting an empty black screen on Steam Deck when I haven't changed anything about the export process nor any other steps associated with uploading updates to Steam?
It started only 2 updates ago, I can't figure out what step I went wrong on, and I'm very experienced with uploads and updates on Steam Deck now, having had updated this game like 20x so far for tests. Why the black screen now? What's changed?
I have the game in the Steam support review queue, so for now I set the build that last worked, 3 builds ago, but even that's showing as a black screen now! What gives? The next review will say it's just a black screen.
(All I can even imagine changing is that I imported a few sounds, and I notice in C3 they're webm files instead of C2's ogg format, but would that for any reason cause the new black screen on Steam Deck?)
EDIT:
Thankfully I seem to have fixed this. At one point during my frantic tests a message popped up on my Steam Deck saying low on storage space. I moved everything I could from my tiny Deck storage to the 1TB SD card, freeing up about 2GB, and my game ran! Unsure what difference it makes, but whatever. The only question is: Why is my system storage almost all full with a yellow-labeled kind of files called 'non-Steam files unmanaged by Steam'? I haven't done anything with my Steam desktop or anything, so wondering why my internal Steam storage is almost full. I got the cheapest Steam Deck system there is, so I'll have to look up how I can clear these odd files that are leaving only a couple GB free.