I have lost many items and guns when my hands went buggy, meaning that when I couldn't hold anything my hand just cleared, as though what I had disappeared, that is the more severe bug.
I was using the newest 0.63.147489 experimental
except for the invisible hand and empty hand bugs I specified above and a few things missing, I love the new update, good job.
update: can move items in the inventory , in or out, I think it might be connected to my character, it got the bug, and now there is the same problem on every server with that character