Ender dragon fly in circles after shooting projectile at her and never comes down to the portal

Was able to replicate this on a creative world (alternatating with survival), but ender dragon was acting normally during a survival (no cheats) fight immediately afterward. Inconsistent.

So it could just be a creative issue? If so, could you provide a video of proof that survival works normally?

Uploaded. Unfortunately, I've never screen recorded before, so I exited the game to make sure it was working. When I started it back up, the Ender Dragon went from half-health to full! Maybe another bug? I'll try to upload a video later of the dragon behaving improperly in creative.

EDIT: as soon as I posted this and rejoined the fight, the dragon started doing tight circles, and didn't stop until it was dead.

Maybe consider reporting that bug that it's regenerating her health! But I think someone has already done it, but I can't seem to find it. So maybe you could create one?

1.14 pre-5
From new world, in survival, never entering creative, but with commands enabled to get endportal and resourses to kill dragon. No arrows or projectiles used, just booped a bit with swords while it was at back portal before it bugged. Maybe workes fine untill any type of damage?

edit: also tested later; Made world with commands enabled, made endportal block and resourses to fight dragon, then recreated world with survival and with commands not enabled, moved overworld region files from former world lo later world. Still same bug. You would need to do a compleat survival run to do better test?
Also, reloging made it work again as well as reseting its health, buged again after dealing it damage. Was in end at relog, saw it warp from previous buged location to another location halfway acruss end island before flying around and starting to work as normal again.

Maybe that could be the issue. She only comes to the portal once and then never comes back down.

I recently tested this in legit survival in multiplayer, and the dragon works normally first, but once every crystal is gone and comes to the portal once, it will just fly in circles after it gets hit once by the arrow in that position.

I can confirm this bug. In my game (multiplayer server) the dragon does not appear to be coming down from a certain height. It just wanders around that height.

Still an issue for the full 1.14 release.

@unknown, as the reporter of this ticket, you don't need to comment if a new version is affected.

I experienced this in one of the first 1.14 snapshots - I thought it was my game being buggy! 

having this problem in 1.14 as well, hopefully it gets fixed soon!

This happened to me last night in my realm. I never shot it with any projectiles as I was going to just use my sword. I left the end to get arrows and came back, and when I entered the end, I got kicked and I couldn't join my realm again. I assume it crashed. About 5 minutes later my realm worked again, but now the dragon was back to full health. I ran out of arrows as I didn't think i'd need more than a stack (i have terrible aim). But then it got stuck in a loop again. I didn't want to risk another crash so I just spawned another stack of arrows so I could just get past this bug. If a mojang/microsoft employee looks at this my Minecraft username is HumanGamer and it was on my realm. (incase they see logs of realms)

this bug isn't resolved or fixed so i'm not sure why this page says so (unless I'm not understanding something, I just joined this site for this issue)

It says it's fixed for a future version. This will be fixed in the upcoming 1.14.1 update quite soon.