I jumped off my mob farm (y 150 or so) with a horse, landed on a big slime pad I made, and bounced up. when I stopped bouncing, the server kicked me and said "flying is not allowed on this server"

Although nobody's gonna take their horse 100 blocks up on a server and jump off onto a slime pad, I would appreciate if it was fixed.

I will edit this and upload a video soon

https://youtu.be/S1sqEWl384U?t=234 sorry for like 3 fps. thats just the screen recording.