After installing your newest update 1.12.2 -4.1.1, I was no longer able to right click on villagers i.e., the trading menu no longer opens (all vanilla and modded villagers are affected). I isolated it down to this mod, all other mods have been removed with the exception of Forge itself.

MC 1.12.2
Forge 1.12.2 - 14.23.1.2589 (latest)
Random Things 1.12.2 -4.1.1

Also seeing this issue with above versions, forge is .2577 though.