Update is seemingly not working via the itch app; the download is listed as "queued" and buffers endlessly, but nothing happens.
Also, why is the game suddenly more than 50% smaller in download size? Just optimization / better compression?
Viewing post in Public Build V0.6.1: The No-Wank-Master comments
I tested both uploaded windows builds on a WIN10 machine, and could run them without problem. These are the exact same zip-files the itch.io installer uses to patch the game, so it is probably the installer messing up somehow. I recommend backing up your savefiles manually, and reinstalling the game. Hopefully that fixes your issues.