Helmet gets removed when resuming game

When in windowed mode and clicking out of the game and back in while inventory is open (directly clicking on the "X" button in the inventory), it will take the player's helmet off and put it on the cursor. I've even seen it stop accepting mouse input entirely afterward (rarely) until the Windows key is pressed.

 

Video: https://photos.app.goo.gl/CFv5oXmVTZuCtK598