6180 the moon (Unity game) non-deterministic

[qixils]

I've messed with every setting from time tracking to wait timeout and nothing seems to fix this: 6180 the moon's inputs are not deterministic. This can be tested with the following movie file and setting a save state at roughly frame 1045 (or any point before the button input on frame 1055) and playing the save state over and over. Sometimes frame 1055's button input successfully goes through to start the game and sometimes it's dropped/missed/idk. This isn't exclusive to one spot, it occurs throughout the game.

6180 the moon.x86.clock_gettime.tar.gz

I can help provide files if needed to test (lexikiq#0493 on the tasvideos discord) Make sure to enable Steam Virtual Client or it hangs om frame 271