Crash after finishing coop mission 4

[freegoon 10]

For some reason I cannot get past the debrief screen of mission 4 of the coop campaign ("Heart of Darkness"). I wait for the lobby menu to reappear, the loading screen pops up and the game crashes to desktop.

This is the error code:

 

Exception code: C0000005 ACCESS_VIOLATION at BEC7D2BD
graphics:  D3D11, Device: NVIDIA GeForce GTX 980 Ti
resolution:  1920x1080x32

 

I created a bug report on feedback tracker. Seeing as this error occurs only at a very specific point in the game, I figured that it might be a bug. But I am not so sure now. The description of the access_violation error on the Arma 3 Wiki pointed to a variety of possible causes and solutions. And I haven't found anyone complaining about this specific problem on the net either. I verified my game files through Steam and defragmented my drive. I could reinstall the game, of course, but that would take hours, so I am a little reluctant in that regard.

 

Any ideas would be appreciated. Thank you very much for any help!