After beating the ender dragon and returning with an elytra the next time I go into the end portal I get spawned in the void.

After I beat the ender dragon I went straight through a portal to get my elytra. After this I returned jumped in the portal and flew home. A couple of days later I return to the stronghold to find the library and obtain the books and possible enchantment books. I then think about flying home but then decide to fast travel by jumping into the portal and go back out again to be in my respawn point ( my bed in my house). I then get spawned in the void dying in the process. I have checked the replay footage and I didn't walkoff the obsidian platform I have just been spawned in the void. You can also see the end island about 100-200 blocks away. This really annoyed me because I had a lot of hours in the world and I treated as a hardcore world inspired by Philza so I thought I would report it to so this doesn't happen to anybody else.