2 issues, the former possibly being a source of the latter??
Context: I use keyboard (only controller I have is a Nintendo Switch Pro Controller, and... yeah, windows has problems with that one :| ), and set my keys so that:
LB=>F (bring up upgrade menu),
Y=>K (arcshot),
B=>L (backdash/cancel),
X=>J (shoot) and
A=>space (jump/select)
1st issue: every time I open the game, "jump/select" is un-bound from space (and not re-bound to default "V"; just "nothing"). Not that big of a deal since "enter" is also registered as "select", so it's still possible to navigate the menus to rebind the key, so in the case it's not changeable, it's ok, but would be nice if it was.
2nd issue: this time, way more... crippling...
I left the game on a while to enjoy the music, then closed the game by clicking the top right "x" (telling this because it may matter).
Now, next the next time I open the game (and every time thereafter), the "select" input (NOT the "key") seems to be... permanently stuck in a "pressed" state?? But also no because it contradicts some other observation??
I gave up trying to explain this any further via text and just made a video instead:
https://drive.google.com/file/d/10GuduSQNbt_aOBYt3twNhm4Fs0UvxNX_/view