Dragon mounts for human paladins randomly fall asleep

[Haiser Quell]

At seemingly random times any type of dragon mount summoned by a paladin will have to pass ~7 or so DC28 fortitude saves or fall asleep. This isn't from a spell or poison used by an enemy it just happens. You also can't cure poison/remove disease to fix it. This never happens with non-dragon mounts. The save attached is with the dragon sleeping.

[K M]

From what I see, you're fighting your own dragon mount!

[Haiser Quell]

I attacked the mount to wake it, and let the bug make the mount fall back to sleep.

[RMTEW FULL NAME]

I downloaded the attached save file, loaded it and found no dragon in sight. I couldn't find the dragon anywhere. So I summoned another dragon mount and no matter what I did, it wouldn't fall asleep. Until there's a better reproduction case this bug is being designated invalid.