When in "higher crouch stance" (get in crouch and then press ctrl+w) the sight alignment of all rifles will get incorrect if you look up or down. See attached pictures. Pistoles dont seem to be affected by this bug. I cant tell if only iron sights are affected or certain optics too.

1. picture: sight alignment is correct
2. picture: sight alignment gets incorrect while looking up
3. picture: sight alignment gets incorrect while looking down {F21865} {F21866} {F21867}