Sound starts stuttering after playing for a while.

[unmerged(162180)]

Noticed that after playing mission for some time (1-1.5 hours of real time) music and sound starts stuttering.
If you minimize game then music plays ok (while minimized).
Restore game - stuttering starts again.

 

[unmerged(478206)]

Once the stuttering music has started - seemingly together with the UI becoming unresponsive in the same timespans (not too sure about this though) - the stuttering will stay even in the main menu.

 

[vince0018]

I have this issue as well.
It seems the longer I play, the game starts becoming more and more jerky, and the sound stutters and makes popping noises louder and more frequently.
I only play in 1:1 time so it doesn't have to do with changing time compression.
Seems like a memory leak from what I can tell.