Hole in Apple Pencil core after using third-party nib

I have a hole on the core of my apple pencil

I buy one of these mix pack nibs from AliExpress, I put one nib of metal point, test it. Now I don't know if the nib made a hole on the core of the pencil or if the hole as already there before.

My pencil works fine, I put the original nib, and now I am suspicious of these third party nibs.

[Re-Titled by Moderator]