Found a bug with the frame being pushed to center if you use Auctionator & this addon, if you open the shift+p menu while having the auction house open and swap between the mount & pet tab the shift+p window gets pushed to the center

It doesn't happen when you only have either Auctionator or this addon enabled, so something is happening when both addons are enabled that makes it get pushed to the center.

Edit: Only seem to happen if the mounts tab is the first tab that gets opened with shift+p while the AH window is up & Auctionator enabled after a /reload or login and then swap to any other tab, if shift+p opens any other tab first and then swap to mounts tab it doesn't happen.

Mount tab gets opened first (bugs out when you swap to pet tab)

Pet tab gets opened first (no issues)

Oh yeah you are correct, I must have had the pet tab open first when I first tested it so it didn't bug out :P

Thank you for reporting this bug. The good news is that I can reproduce this bug. :)
Also it has nothing to do with Auctionator. After a /reload the auction house has to be opened first before the mount journal.

Released with version 2.27.2

Great, can confirm it works now 😄