Question 1: Has anyone using SRAM AXS groupsets had trouble installing the cassette?

Question 2: Does anyone use GP5000S TR 28mm tubeless tires?
I'm having a lot of trouble getting even the first sidewall of the tire up...I've never had this much trouble in the last 8 years.

I'm already in contact with Matter, but I'd like some feedback here on the forum as well.

Thanks