Same things happening for me, but on single player. Had no issues before gen 2.

I can confirm this is also happening on our non dedicated server. No UI, and aggressive tames, even after 25% tamed, still attack. My work around was to keep my distance and use arrow bait to complete the tame. Thanks again for this great mod. I hope the issue can be resolved soon.

It's a problem with the Genesis 2 update, Burgessss said they can fix it once the dev kit is updated.