Thanks so much for the bug reports! SUPER helpful for cleaning things up post jam.
The shield bash not shielding on the corrupted warrior specifically (weird!) and the Thyraxias gore attack are 100% bugs.
The spirits/ghostly ones being attackable with the flying enemies is intentional (their tool tip calling them “flighty” is supposed to reference that) - I figured with them being depicted as hovering that them not flying would be more confusing, but without the status icon it definitely looks unintentional!