https://www.twitch.tv/videos/1463896847 look to the end of this video:
as you can see at the end of this video
every time I start the game, or every time the character dies
the moose is refreshed as a mount animal ...!
(I had chosen the wild boar)
if I go back to the stable, and re-select the boar (for example) in the next game (or after the next death) the standard mount animal will be re-freshened ..! (the moose)
Hello AlePlay, thanks for letting us know of this mount bug that occurs after you use a fast travel location.
I will report this to our team so thank you for providing that video and please make sure your most recent save file is uploaded to the cloud 
Can you let me know if this only affects your Boar mount, or do other mounts get affected too and reset to moose after fast traveling?
As for the second issue with using the Raven and having your hidden clothes/equipment reappear, were you also able to record this happening by any chance, so we can pass this to our QA team in a separate investigation?
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