I was testing to see if another bug happened in the newest snapshot (MC-89106), when I found out I couldn't actually do so because the ender dragon kept regenerating, even though I had destroyed all the ender crystals.
There was nothing indicating where the ender dragon was regenerating from, and it would regenerate no matter where I hit it.
I also noticed that the ender crystal itself was missing from 2 areas with iron bars around them, but even though I destroyed the bedrock this would still happen.
Comments 3
I did do this in the newest snapshot (46a) with a new world.
I had a look at MC-65040 and found that somebody already reported the ender crystals despawning (MC-92073) but I had my render distance set to 10 chunks and I did not fly away from the island. If this helps I also saw some enderman get agro at me (even though I was in creative) and they also got agro at the actual ender dragon.
Did you reproduce this with a new 15w46a world ?
If not, please do so.
May be related to MC-65040