I tested this multiple times with silenced pistol and also with other weapons and never experiened this.
It would be extremely useful to see a video of this happening, as I can't do anything about it from a screenshot and an inability to reproduce it.
This bug happened before, and I fixed it, and it can't be the same cause. If this is a new issue I have to investigate it but I can't do that if I can't reproduce it.
EDIT:
- Did this happen today?
- Do you have any mods - anything at all?