I've been having weapons problems since the update.
A particular shotgun associated with one of my games is not working quite right. It works fine the first time you get it and wear it, but if you detach then reattach it, it doesn't fire, it instead does the touch/grab thing in mouselook.
I put debug in the permissions code paths and it does go through there, getting permission to animate and take controls, even on the second attach.
Here's a particular weirdness that I completely can't explain though. I had the shotgun rezzed on the ground, I wore another gun, and fired it while I was standing near where the shotgun was rezzed on the ground. That shotgun on the ground started firing every time I fired the gun I was holding!
I think there's probably a LL bug somewhere here, combined with something weird in the script, but I'm stumped at this point.
