Careful, maybe spoilers ?

In the shelter #81, in the quest in which you have to find a serum, there are a lot of mole rat.

At the end, there is the Mole rat queen, digging tunnels like others.

I would like to kill her after all the others. But at a moment, don't know why, she tried to enter in a tunnel but stay blocked, glitching.

I tried to shoot her, but 1 on 5 bullets touched her. I had to kill her at molotov.