NB. A found some posts about that problem but no regular bug report.
Steps To Reproduce: open a loot box and see the mouse pointer badly placed. You need to move it to “take” or “take all” each time.
Images / Videos
Host or Client: Both, a solo game
Players in your game: Me
PC : Intel Core i7-4790K CPU at 4 GHz;
8 Go RAM
Nvidia Geforce GTX 970
Windows 10 Home 64 bits