10 days, with a lot of ticketing back and forth
recently i entered OGH with my pet already out and it disappeared, but i could still access the pet window. i put it back in the egg and the egg showed up in my inventory. once i left the instance though, the pet was out without me hatching it. no loyalty lost. really weird.
I guess I'll just have to sit tight and wait then
That exact same thing happened to me too so the next instance I entered, took my pet in as an egg and hatched him inside thinking that would fix the problem but NOPE.