1943 S Washington FS 504 RPM failing to attribute by graders at PCGS

Silvermonster

I have posted my coins photos as it is a 1943 S Washington FS 504 RPM. The graders said it was not a supported PCGS RPM even though it is listed with a PCGS number and then they said it was not a coin that would be attributed as such. Opinions please or if there is a better forum outside of variety vista of course.

You will see in the photo it is stage C RPM 504 which is a supported

https://www.pcgs.com/coinfacts/coin/1943-s-25c-rpm-fs-504/408347