I saw Sun_beams's bug report and it was very similar to this one. I was holding a bow and I took damage to my left arm and it made the bow invisible, then when I swapped weapons I couldn't swap back to the bow and my body rotated weirdly. This rotation stopped me from being able to attack. Red error messages appeared on the screen as well.
Felt like an important thing to report, very exited for future updates! :>