Just FYI.
This issue with Ju-88 bombsight is related with camera control - if camera are off set from forward view before look through bombsight the game freeze.
The workaroud is look front or restet view before look through gunsight, as above.
Some users report that using TrackIR this dont happen.
I test with NewView - that emulates TrackIR via POV HAT - and game dont freeze (at least in my system).
Sokol1