After getting knocked off the horse while fighting bandits my character started floating in the air with no way of getting back on the ground or getting back on the horse. It fixed itself after i flew to a hill on the same hight level as i was floating on and when i got on top of it (henry’s feet touched the hill texture) i was able to jump and reconnect with gravity…
Mounting horse can help aswell as the horse is high enough sometimes (depends on float height) to activate mount menu. After dismount Henry lost his floating powers 