Version: 1.6.10
Server: 1.08.23
Date & Time: 7/31/2019 1:09pm EDT
Stormfly Test Flight
4th Battle (25 Runes)
Description: Enemy dragons disappear then reappear
Please see video:
https://www.dropbox.com/s/mdzvhmvc9k15o2p/Stormfly%20Test%20Flight.MOV?dl=0
Hey Capt.Wacky, thanks for reporting this to us! I’ve notified our team. 
I just encountered this too yesterday twice in the repeatable quest, first, they appear without health bars and then reappear with them.
That happens to me a lot, usually after an alpha battle, if i dont restart game, all battles will be like that. Restarting the app fixes it for me
Almost every battle for me
Hey everyone, our team is working on addressing this. However, we don’t have a time frame yet for a fix, but if you have any concerns, please do not hesitate to reach out to our team at support+forums@ludia.com.