Guild Wars 2

I’ve recently noticed that whenever I go to PvP lobby from open world, the game doesn’t remember which pets I had there previously.
I use two birds, but when I enter HotM I have an arctic wolf and a devourer which have the names of the birds.

When I leave the lobby, my open world pets are ok and stay the same as they were.

Not a bug, this is intended functionality to allow you to have a different build setup in PvP and PvE.