Bug where I can't see non-gun parts of certain things

I was playing and noticed I couldn't see my thermobaric grenade launcher thing, and later got killed by a floating gun; I only saw the gun, not the actual person. I don't remember if I saw the red 'enemy' ping or not, it happened at the end of a match. 

Couldn't find this in the 'known issues' area so figured I'd report it