I have a bag of 8k fuses. HQ advised when I raised this with them that they had noticed an increase in fuse fails and suspected a poor quality batch. This was a few years back.
My 8k will blow a fuse say 1 in 10-20 times I do a power cycle. Especially if I am repeatedly on / off during a kit demo of some sort. Fortunately I don’t do much of that.
So, I would change the fuse, get some more and carry on.

Rgds,
Nick