Failure to save everything

I transferred my 0.A experimental version (My save version is 2a33858, and I transferred that to experimental e9bd8e6) to another experimental version, and now it won’t save anything. Like, anything. General saves, keybind saves, option saves, nothing. It’s giving me a “Failure to save” prompt.

That’s no fun at all. Filed an Issue; thanks for reporting.

Anyone else have this sort of problem?