Type of bug

Compatibility issue, Error in console

/ess version output

Server version: 1.16.5-R0.1-SNAPSHOT git-Tuinity-"1382473" (MC: 1.16.5)
Brand version: SkyServer (It's just my slightly tweaked version of Tuinity, don't worry about it)
EssentialsX version: 2.19.0-dev+221-1556b91
EssentialsXSpawn version: 2.19.0-dev+221-1556b91
EssentialsXChat version: 2.19.0-dev+221-1556b91
EssentialsXGeoIP version: 2.19.0-dev+221-1556b91
PlaceholderAPI version: 2.10.9
Economy Layer: None
Vault is not installed. Chat and permissions may not work.
Fetching version information...
You're running the latest EssentialsX dev build!

Server startup log

https://paste.gg/p/anonymous/5ab2422fe3474b3a8ed5b5264b5758c1

EssentialsX config files

Default Config.

Error log (if applicable)

https://paste.gg/p/anonymous/6348c1f4b2f5471880d63f041620882a

Bug description

When supplying entity data for the /spawnmob command, it is ignored. Only applies on latest dev builds on Minecraft versions below 1.16.5. Example: /spawnmob sheep:red spawns a white sheep. This is the case for all mobs.

Steps to reproduce

1. Run /spawnmob sheep:red
2. Observe that a white sheep is spawned

Expected behaviour

Running /spawnmob sheep:red spawns a red sheep

Actual behaviour

Running /spawnmob sheep:red spawns a white sheep (almost always, sometimes the colour is different).