Itchy and Scratchy Land gate glitch

I have the same glitch too, where a ton of my characters are trapped at the gate. Clicking the gate after clearing them just freezes. I tried un-installing and re-installing, and that did not work. I also stored Akira's building, and still nothing. :/ I have no idea how to fix this.

Update: Literally < 1 min after I posted this, I fixed it! So what I did was I cleared out the characters from the Gate. Then, the character that was displayed in the character finder (upper left) was Akira. I stored The Happy Sumo (Akira's building), and so Akira's picture was replaced with Bart's. I close the app and re-opened it. I cleared out the characters from the Gate again, and finally everyone left. Try that and see if it works!

Yeah keep getting all that cash over and over

Try storing a building associated with a character stuck in the gate. Maybe that will break the cycle.

I had a similar issue, and commented here:
https://forums.ea.com/en/the-simpsons-tapped-out/discussion/222337/itchiest-place-part-7-glitch