[aneurysm-]

Indeed. Question is if themoviedbhelper overwrote values yes or no. Metacritic isn't in my nfo, so it downloaded that extra. To verify that, you should edit a value in the nfo file (for instance put the critics value at 70% instead of 57%) and see if it overwrites that.
But nevertheless, it's weird  that your previous build had it working without themoviedbhelper and now it would be needed.
tnx again already for taking the time to investigate