We were over by vault 19 battling deathclaws and Veronica says "can't use this anymore." I look in her inventory and she has removed an $8,500 Tesla cannon in near perfect condition. This is the first time I can recall this ever happening in years of playing FONV. I know about the faction stuff and that they'll toss it on the ground, but this seems like something else. Can anyone explain why this happened? I do run 4 or 5 mods.

Isn't it what she says when she runs out of ammo?

So picks the Tesla Cannon and a couple of ECPs because that's what they all do. She shoots it couple of times and runs out of ammo. And she says what she says. I think.

No, she says "got anymore ammo?" and doesn't remove the weapon. And she still had around 175 rounds..EC packs, I think.
Also, she'd used this same weapon many times before without a problem. I'm stumped...I tried Googling it and got nothing.