Today I tested 1.50rc, and I found a (probably new) animation bug:
If you have a pistol and a primary weapon equipped, switching from the lowered pistol to the primary weapon makes your character perform (kind of) these movements:
- pull the pistol from the holster and point straight ahead
- lower the pistol
- put away the pistol and take your primary weapon
As the pistol was out of the holster and lowered already, the first two animation phases should be skipped.