Having this issue, too. Had a pet already equipped, and when I switched to Helios it wouldn't let me equip any of my pets. Keeps saying my current pet needs to finish incubating. I made a genetic imprint to see if that helped, and it moved my pet from the active spot, and now there is a random kavat there that isn't one of mine. There are only the kubrow/kavat breeding tabs now, and if I try to incubate a new one I get "unknown error". REALLY want my kavat back in missions, should never have unequipped him
Okay so mine is fixed now. I don't know if it was taking dna or trying to incubate, but after I logged in again I went over and could name my new kavat. Hopefully this is helpful to others