Not sure if this is being triggered same way most of my crashes are triggered.
My crashes are triggered by hitting Enter shortly after Alt+Tab between client windows.
What I think is happening is after I hit Alt+Tab then in the client window that is active I hit Enter right away, it sends command to Windows of Alt+Enter.
I say this because my display is responding in this fashion suggesting that it is going into fullscreen.
I have reduced the frequency of this happening by removing Enter from my keymap ingame, that way I must manually select the Chat box to activate it.
Still waiting for my muscle memory to catch up with this process but it has reduced my frequency of crashes.