Referring to issue #744 the right click function has been fixed, however, when you use an Extra Utilities 2 contract on a villager and they sign it, they are given an "under contract" tag, this tag is used when a villager under contract is captured in a golden lasso to create a Chunk Loading Ward. However, even though you can have the villager sign a contract now, that tag doesn't exist with MCA so when you grab the villager with a golden lasso you just receive entity.MCA.EntityHuman.name and you are unable to use it in crafting the chunk loading ward. Additionally, when you right click a villager with the golden lasso, even though they are picked up, the dialogue box appears on screen and you have to escape out still.

Should be fixed in next update.

I'm not sure there's much more I can do, but I will look into it.