X1C 1.11 FW - Refuses to home aftermarket build plate

Anyone else run into this?

X1C - ~1200 hours (Absolutely Flawless until today)

Supertack - Homes no problem

Textured PEI - Also homes no problem

PET Smooth Build Plate From Amazon - Tries to home 1/4" from the build plate and fails.

This was literally working 24 hours ago (dozen or so prints with zero issue) before updating the FW...

My first attempt and printing post FW update messed up the bed leveling but this resolved by turning on ABL (At least for this print...)

I'm going to revert the FW after this print finishes and report back but I just figured I would throw this out there in case I'm not the only one...