Hey, I had it happening a few times now.
some time it happened when I wanted to yeet something (paper, gasoline canisters and so on) but it fixed itself after I dropped the item I wanted to throw.
Then sometimes when I want to pick a weapon from the hotbar, it only takes it into one hand and basically you can't use it anymore then.
When I try to aim at something it will make the fist fight animation and I'm unable to shoot. (only relog fixed this)
seems to be happening mostly when I want to pick a weapon from the hotbar but also happened when I dragged items into my hand from inside my inventory (looks like it happens only with two handed stuff now, shovels, axes, weapons, canisters and also some basebuilding stuff. Like I walked around with a chest in just one hand and it didn't make my character slow like usual.)