i cannot download the game via the itch.io app or on the itch.io website.

the app gets a bad build read, apparently, and won't bother to install any version (or at least the current version and the one before). the website downloads a .rar file that does nothing but deletes itself and downloads itself again. don't even know where to start :/

Same here. It seems the build info meta-data is invalid. The desktop app cannot interpret a proper build and cannot initiate download. This results the client in saying the game is up to date too, when it's clearly not.

Additional info: When trying to do a fresh install via the app, the drop-down menu to choose build is blank with no options, so an install cannot commence.