Hi! In the recent Avacyn event, an Odric Lunarch Marshall was given Hexproof by Avacyn’s ability, and retained Hexproof even when it was disabled. My expectation was that it would lose Hexproof when disabled. Thanks!
Was Odric given hexproof by Sigarda maybe? 
Yes. Sigarda. Sorry.
Anyway, he retained Hexproof, even after Sigarda was killed and he was disabled.
I’m not sure if it’s a hexproof issue or a hexproof given by Sigarda issue. I’ve been noticing weird interactions via Sigarda’s myself though.
From what I understand, I think this is the intended behaviour. Sigarda’s Hexproof is meant to be permanent, at least as far as its description suggests. What is bugged/mislabelled, though, is about “you” being also supposed to be hexproofed.