I entered the egg festival on my horse and now it is stuck

[alwaysboredandhungry]

I was heading from robin's house to the town using the path that goes near the community center. As soon as I entered, it directly sent me to the egg festival. Now my horse is just atuck in the passage and I cannot mount it. Not sure what to do

 

[alwaysboredandhungry]

It just showed up in the stable the next day!

 

[nicodeux]

Auto-unmounting on area change is sometimes tricky when you want to mount again. But as you noticed, you horse will always move back to the stable the next morning.