Modpack version
Enigmatica 2 1.71a

Can the issue be reproduced?
Yes

Issue
Quest are not synced in party, tried reforming party and same issue. It seems to be the same as in ticket #343
Google tells me that it seems to work in Expert mode, but haven't tried that as we are running normal. We can complete the quests on our own, so quest progress is ok.

I'm afraid it's currently disabled, pending a rewrite.

Good to know, will keep my eyes on this then =)

Ty ty