I'm on the third one, and have found a broken return spring. Has anyone else had this problem?
I noticed that on the previous two CQs, one spring detaches completely, while the other seems to be pinned firmly to the top cap. This is the one that's broken, of course.

Does anyone have an idea if this pin is removable? It seems solidly fixed. I'll try to get some mole grips on the pin tomorrow, to see if it unscrews, but being dome shaped, it's not going to be budge easily.
TIA