Alt-Tab with Loot screen open causes game to hang

Issue: Alt-tabbing with the loot screen open causes the game to hang.

Reproduction steps:

1) Open a loot container
2) Alt tab out of the game
3) Alt tab back to the game.

Result: the game window will not respond to any mouse clicks or input, and Windows will eventually tell you the game has hung.

Viewing the game's memory usage in task manager in this state will show only ~16-32MB instead of the normal hundreds.

Unfortunately it doesn't happen every time, but it's definitely present in 1.05b.  I'm unsure if it was in 1.04 also.

Edited May 5, 201510 yr by Giolon