Textured PEI Plate Degrading on P1S

[JonRaymond]

It’s brought up time to time.

PEI Plate Wear from Tip Cleaning

Hello all. I’m new here so if this question has already been asked/answered you have my apologies. I received my P1S on Sept 06 and since then have noticed some odd wear on the PEI sheet at the back where the tip, I’m assuming, is cleaning itself. Picture attached. Is this normal or do I have an issue? Thanks for any help you can provide. [wear]