Setting slime hp does not work.

[KermX]

Setting the hp of Slimes does not work. Instead they have the same health as if you spawned them in via command without the plugin.

To Reproduce

1. create a boss using slime as the base mob
2. set health to anything

Expected behavior Should be able to set the hp of slimes

Server Information (please complete the following information):

• Version: Paper version git-Paper-216
• Version of plugin and eco: eco version 6.26.1, EcoBosses version 8.5.2

Edit: this also happens with resized Phantoms.