Pictures? I do not think you can replace the "bullnose" without demo work that will compromise the waterproofing system (which may or may not exist anyway, builder dependent).

I think you’re right about demo. I think it has the kerdi board underneath. The tile crew did a horrible job in here so I don’t want them back.

Scrape it off and have a brown niche? Also, what the heck? Is the tan a nice enamel finish and it just was topcoated with something so as to not have to order the correct color bullnose?

“Manufacturing defect”
Seller said it was probably made in Turkey or Italy. Obviously neither of those places have any experience with building things that last 1000 years. 🙄

Riiiight. They totally accidentally used paint instead of a fired ceramic glaze. Could happen to anyone.