I was attacked by a shark a while into my playthrough, and after attacking it i switched to my hammer to fix the foundation that it almost broke, and to my surprise i wasn't holding a hammer... or anything for that matter it just looked like i was holding an invisible spear. i couldn't use my hammer or anything else other than the spear when i switched to it
I even emptied out my inventory, tools and all but I was still holding an invisible spear. Thanks for the read! - Elite