Hi all,

Getting an Invalid Player Data in a 1.20 modpack in a similar fashion to others who have posted issues, but this time NOT to do with Wilder Wilds. I'm instead using the MineColonies Dimensional Adventures modpack through Prism launcher, but removing JEI and putting REI, RER, Roughly Enough Professions, and REI Plugin Compatibilities. The game only has this invalid player data issue when RER is installed. The log below is only with REI and RER installed as when REI Plugin Compatibilities is installed, the logs get super messy. However, the game only crashes with RER installed.

In Latest.log, the error is shown around line 12176,
latest.log

And a snippet is found in rei-issues.log
rei-issues.log

rei.log doesn't seem to have any relevant information.
rei.log

Not much to go off of from my perspective, but maybe a keener eye will have an idea.

I'm also having this same problem. I recommend using Just Enough Resources with REI Compat mod

Roughly Enough Professions and Roughly Enough Resources are the two that cause the world to disconnect on load. Disable both and check your world loading.