Hi, I started to face this error after I moved to Kicad 8.0.4 when I try to import the PCB on Altium Designer 24.
So, I open the pcbdoc in notepad and change gr_rect to fp_rect and I can import normally. But I need to roll back the file, otherwise it crashes on Kicad,
Could be some configuration on Kicad to solve this?
“Altium” is mentioned 6 times in https://www.kicad.org/blog/2024/07/KiCad-8.0.4-Release/ It is possible that fixing one bug either exposes or creates another bug. Maybe this should be reported on gitlab, but I don’t know enough about this from your description to be sure.