All my minionless pets have now a nameless minion repeated. 6 of them a Baby Phoenix and 2 of them a Nocturne. It's weird, because I have those minions attached to only 2 of my pets. I'm using Mozilla Firefox 34.0 and Windows 8.

Same here.

It seems that a pet without a minion will seem to have the same minion as the pet after it.

I am also having this problem.

Yup, I have 5 pets with an unnamed Byte listed before my pet that does have a Byte attached

I'm getting this tonight as well.

Screencap: http://puu.sh/dpQ7J/e405b3e1d3.jpg

I also use FF. I clicked one of the duplicated minions just to check on it though and get an error message saying that pet doesn't have a minion, so no worries yet about extras actually being created.