I guess the turret is so ****** that nobody use it often enough to complain. But I run into this problem way too frequent. If the video wasn't obvious, the bullets stuck at the barrel.
Haven't seen that bug with the turret yet. Then again, I can't remember the last time I actually tried shooting somebody with it, so... Offtopic: is that the Grounder you have in the second video? That thing displays SKEP's scope model in the first-person-view for me for some reason Makes it hard to determine whether I've grabbed the right launcher at a glance now.
I get the turret bug all the time. Really annoying, especially in the heat of a battle. 120 more kills with it and I can out it away forever.
If you haven't already, I would suggest submitting a bug report using the in-game interface. Instructions to do so can be found in the link below: https://help.soe.com/app/answers/detail/a_id/33994/ In addition, we now have a game-play bug sub-forum where users can post, report, and discuss in-game bugs. You can find it by clicking here.