My friend and I both are having this issue persist and can not multicrew the Mi-24P without this issue presenting itself.
The issue is, after activating the Raduga ATGM sight and the pilot maneuvers the helicopter around causing the sight to exceed gimbal limit, the sight will get stuck appearing that the aircraft is rolling. Despite this, the stabilizer will continue trying to stabilize the sight causing it to break more.
Sometimes afterwards it is possible to "center" the sight enough to fire a missile though it is still very slanted.
Occasionally, it will get bad enough that the sight will start clipping through something on the helicopter and looking basically 90 degrees downward in a position it would be impossible for the sight to look.
Initially I thought it was something to do with a FAQ post
"Why does my Raduga ATGM sight get stuck and I cannot center it?
You exceeded the 60-degree gimbal slew of the sight. You must reset the Observe switch to reset it. If that fails, cycle the Raduga system power that will take 3 minutes to realign."
but again the clipping aspect made it seem more than that and the suggested fixes didn't do anything outside of just closing the sight doors.
We've had this issue on different maps and different issues. We both use trackir and use a joystick to move the sight around if that is relevant.
I found this post from last year detailing the same issue with no real fix.
I video taped two separate instances of this happening.
Quick 2 min video with the bug. Ignore people talking about irrelevant stuff.
Much longer video of the whole mission.
https://drive.google.com/drive/folders/1aVDHia_lcddIYJDxCsZykEWJkEesExsb?usp=sharing
Tracks from both videos as well as an additional third that wasn't captured on video.