every time I load into an existing world, I get a crash with the error "UUID string too large"
here is my crash log
crash-2025-01-01_14.18.40-server.txt

Do you have any files in the player config folder that weren't created by the mod? Did you rename any files there?

not that I am aware of, I haven't changed any files or done anything like that manually

Can you check if there are any unusual files there that aren't just <user UUID>.toml?

no <user UUID>.toml but there is <user UUID>.dat and <user UUID>.dat_old