help. SHIFT has stopped working on my SPG's

DomoSapien: Hey guys, I was experiencing this issue on my PC at home, the following fix worked for me:

Go into your discord settings, and under the "Game" section, make sure your discord overlay is disabled for WoT. Click the little monitor icon so it turns red like mine here: 

EDIT: You'll also need to restart WoT after applying these settings. No rebinding necessary!