I just recently got my nightfury and all of its effect completely disappears a few seconds into combat. Sometimes it doesn’t, but usually it does. It seems to disappear no matter what i do, so i don’t have replication steps, but it happens so often it would be hard to not notice. Very annoying and leaves me disappointed.
On a related note, when running, Nightfury’s bats all gather up in one big blob, making it look rather ugly. Maybe changing some of the particle generation settings should fix it?