I killed the dragon for the first time in legit survival, but didn't look at it's death animation so my device wouldn't lag and/or crash. However, no XP rained down. Come on, it's the final boss.
Edit: This isn't actually a bug all the XP just fell into the end portal I'm stupid.
I had the same problem, and I see a lot of posts do, so can you help me share and upvote this problem by upvoting everyone else's?