Lots of Ender Dragon spawns

I went into the end and was met with lots of end dragons there all at the same time (Atleast 5 plus), I was on normal difficulty and I’m pretty sure that I hadn’t heard anything about adding multiple dragons to the end. But also all of the respective dragons health bars were displayed on the screen each on top of each other so even if this addition of dragons is a new feature then the health bars needs to be fixed, I’m pretty sure though there should only be one dragon as I was dead in seconds. I didn’t get a screenshot as I was immensely concentrating on staying alive and the last thing I was thinking about was taking a screenshot. Please fix I would love to be able to get some shulker boxes without being killed in seconds from e en attempting to. Thanks