Nope, it's 123. Singleplayer game. I added the mod after i generated the world/save, so that might be it.
Interestingly enough after saving it again (i already did a couple of times, and the error persisted), it now works on load.
Might have been an error on Factorios end which was fixed with 0.16.7.
I'll report back if i manage to produce it again.