Logged in this morning… and my pet wolf was missing!
Kinda goes along with my current thread about not wanting to play anymore since I have the two required items - as they may disappear. Didn’t mean literally. (I still have them, but my wolf is mysteriously gone from beside me - which he was when I logged out)
update:
When I logged out last night, and logged back on, he was ‘spazzing’, so I picked him up, and tried to place him - couldn’t where I was at, pictured above, so I just clicked ‘follow’ and he calmed down.
Logged out, came back this morning - and gone.
Perhaps the above steps, location, will help to repeat said glitch.
update he found his way back home! 
Thread link:
Also, froze… and crashed.
Missing wolf, and error message.
Place: Unnamed City
Windows 10
EU3 Server PVE