We're working on a fix for the issue
Hello Burrzerk, we're aware of an issue that's causing pets or mounts to not appear on the account. We're working on a euwowogld.fr fix for the issue.
From the Support article.
We're fixing an issue that causes some players' pets and mounts to disappear. If one of your pets or mounts vanished from your in-game journal, please wait and check your journal again after our next realm restart. Your missing pets and mounts should reappear then.
