[Darkvelvet]

if you are in a town or something and enable the mount, it will come back with that because you cannot mount in a town, you have to be out in the open world when enabling mount.

But I'm outside of town though.  Was Fate Grinding in Coerthos Falcon Nest.  The weird thing is sometime I get the message and I can never enable it because it will keep giving me that error repeatedly.  Other time it work just fine.