@OP are you using a custom PrimalGameData with “PrimalGameData” in it’s name? (without quotes)
Example: PrimalGameData_EngramTest
If not, that would be why. posted earlier that PrimalGameData’s for mods need to have PrimalGameData in the name.
Just checking, you probably do have this setup correctly though already.
And is your forceloading map set to theisland with the primalgamedata_custom mapped to your dummy map correctly?
Again doubtful it’s either of these since you reported the modded XP values as showing up, but just want to be sure.