Bug Description:
Just created a server on Empower Servers today and I have been trying to check to see if everything is working as it should be and I decided to spawn in some rabbits and they are all black with no markings.
I tried summoning them with different variants but they are still all plain black. I tried breeding two together and they produced another rabbit that was plain black and full grown? I have no idea what I could have possibly done to make this happen :(
its my first time modding a server and I'm pretty bummed out
i have checked the other animals and they all seem to be working fine? all different colours/ variants
but the rabbits are just all adult and plain black??? Not quite sure what to do and I hope I haven't made some silly mistake because I think the rabbits are so cute in this mod and I would love to see all their variants

Mod Version:
1.20.1-2.1
Minecraft Version:
1.20.1
Screenshot (Optional):

Have you tried removing other mods? Did the issue persist after removing them?:
I do have a few mods but I don't think they could be causing this issue?
Are you on Singleplayer or a Server?:
a server
-Before posting an issue, please make sure you’re on the latest version of the mod. There’s a possibility it’s already been fixed!

I ended up deleting everything off of the server and redoing it all
I believe it has fixed the issue..? I am not sure what I did to cause this sort of problem in the first place

Update: I think it has something to do with the mod Simple Voice Radio by CodinGlitch for some reason when I have the newest version of that mod installed it messes up all the bunnies?
Rolling it back to a previous update seemed to have fixed it for me
but not for my friend, they are all still plain black

This tends to happen if a Forge -> Fabric connector is installed (Synitra seems to be the biggest issue), so see if you have any of those and remove it. Could also just be caused by another mod, or server/ client-side corruption.