After beating the ender dragon. the portal to the end city has spawned and after entering it, the player automatically falls into the void as the portal in the end city does not have land below it.

I have a screen recording after entering creative to show the incident that happened to me. As soon as i go through the portal, I haven't pressed any keys and my player automatically falls. Please fix this issue as it takes a lot of time to build a world and make other progress which is all just lost without your own fault.