TLDR Summary: Missing mount that was achieved and cannot be obtained again.
Mount: Delver’s Dirigible
Character Earned on: Aryxah - 80 Priest
Description: I was in the main city of Dornogal and I had just collected the Delver’s Dirigible had earned the achievement I’ve Got a Flying Machine!. I clicked on the mount to see what it would look like and I was on the mount approximately 30seconds - 1 minute.
The servers had stability issues and i was forcibly disconnected from the server. When I was able to reconnect ~30 minutes later.
I went to mount up again on the mount and noticed that it was missing from my mount inventory. I then checked my bags and was unable to find it. I then checked the achieve to see if a server rollback had happened, and I still had the achievement earned for that time, but no mount.
I submitted a in-game help request; I was told in that ticket that I should come here and submit a bug report.
Any help would be greatly appreciated.