I've been to the end multiple times and spawning there was just fine until one time when I went into the portal to design an end base, I fell into the void when I loaded in. I think that the game may have spawned me underneath the obsidian platform. I went back to the end multiple times after to see if I would fall into the void again but I didn’t happen again. But this bug is rather annoying since I lost all my items to this bug. I was playing on mobile 1.16.210