Mining in 1st person view sometimes leaves the mining pick in the frame

Steps:

1) Walk up to a mining node in 1st person camera mode
2) Double-click on the mining node to start mining
3) Sometimes (>75% of the time for me) after the the first or second swing, the mining pick will enter the frame and freeze there. It will stay there until you leave the 1st person camera view.

Edit: It will exit the frame once the mining is done. So to reproduce, pick a node that takes a long time to harvest (like the ones inside Owl's Nest).