[Incompatibility] RPG Difficulty causes Summoned Zombies to no longer spawn

[kyber-6]

Issue regarding Revanant Origin as described by LastMarauder:

Hello, Muon! I'm afraid today's issue has been rather baffling so far.

The Revanant Origin seems to be having a problem. In just about every other way, it's in top shape, but when I'm in Solo on Fantasy MC, and I try to make a zombie...nothing! Everything else works fine, Skeletons, Zombie Horses, eating skulls, but not the base melee zombie!

We at Pixel Dream Studios have been working on including Medieval Origins into Fantasy MC, to see your works enjoyed by as many as possible! And would love to help, seeing as a number of fans are having the same issue. To assist, we've included a log of the instance occurring, and hope to provide aid in seeing the matter resolved.

Thank you for reading this! -The Pixel Dream Studios Team.

latest.log

[muon-rw]

Hi Kyber, looks like the issue is happening here: java.lang.IllegalArgumentException: Duplicate id value for 27! at net.minecraft.class_2945.method_12784(class_2945.java:81) ~[client-intermediary.jar:?] at dev.muon.medievalorigins.entity.SummonedZombie.method_5693(SummonedZombie.java:214) ~[medievalorigins-6.3.0+1.20.1.jar:?]

Which means I've done something really silly and probably easily fixable. Will take a look at this soon!

[muon-rw]

It looks to be a mod compat issue - maybe something else is assigning FOLLOW_RANGE automatically to all Zombies?

I'll try to narrow it down.

[muon-rw]

It's caused by this mixin.

Defining synched entity data in that mixin causes SummonedZombies' attempt to add a tracked Owner UUID result in this duplicate id value error.

Not really sure what to do about that, though...

[muon-rw]

Fixed in 6.3.1

[KevzCz]

Noice :Đ good work