thank you for letting me know, also thank you for being very specific with the description of how you encountered the problem, this issue has been brought up before, but I was never able to reproduce it due to lack of information on how it was triggered
I will fix it as soon as I can
Viewing post in CH7 Knight rematch (Normal+Recruit route) comments
ok so I know what causes it now
I may be stupid
when you die, it triggers a broadcast that causes a lot of things to stop / reset, one being the background, since it blacks out during attacks, and I wouldn't want it to start blacked out
for whatever reason, when the background resets on death, I had made it STOP REGULATING THE LAYER IT WAS ON, which allows other components to move behind it when specific actions are taken.
it... should be fixed in ~10 minutes