I’m going to provide a counterpoint to everyone here so far and say I’ve had nothing but good experiences with MPB.

It’s unfortunate you missed the 14 day return window, I definitely make sure that I have the lens or camera in hand and fully test it during that time, as that’s what it’s there for.

Can you add some photos to your post of the fiber and a test photo or 2 that shows it in your photos?

Sounds like it could have been damaged in shipping