I recently ran into a glitch with Shady Sam (shady vendor hiding next to the Imperial City barns).
I narrowed it down to ‘MMM – resized races’.
With that plugin, Sam attacks me. He is friendly without it.
However, I looked in OBMM – there were no reported conflicts between this plugin and Sam. The only overlap reported with Sam are Reneer Gard’s Overhaul and Shady Sam Plus. Actually, OBMM doesn’t report any conflict with this plugin at all.
I had to disable ‘MMM – resized races’ for now. I will have to check if it happens again in future versions of MMM.