So Sophisticated Wolves crashes my Dedicated Server after converting a Wolf from The Twilight Forest and bringing it back to the Overworld. I named a wolf Sebastian and my logs keep saying that when a player was spawning in the Overworld something was happening with Sebastian and the server would immediately crash. I'll provide a copy of the logs.

Crash Log 01: https://pastebin.com/cUMm9XnP

Crash Log 02: https://pastebin.com/KBG0Vsd5

I hope someone can shed some light on the problem. I've had to remove the mod from the server which immediately stopped any and all crashes, but also removed everyone's pets, so yeah.

Forgot to mention,
MC Version: 1.19.2
Forge Version: 43.2.8
SW Version: 4.1.2

java.lang.NullPointerException: Cannot invoke "net.minecraft.world.entity.LivingEntity.equals(Object)" because the return value of "sophisticated_wolves.entity.SophisticatedWolf.m_21826_()" is null at sophisticated_wolves.entity.SophisticatedWolf.m_7337_(SophisticatedWolf.java:458) ~[Sophisticated_Wolves-1.19.2-4.1.2.jar%23552!/:4.1.2] {re:classloading} at com.abdelaziz.canary.common.entity.CanaryEntityCollisions$1$1.computeNext(CanaryEntityCollisions.java:137) ~[canary-mc1.19.2-0.1.10.jar%23391!/:0.1.10] {re:classloading} at com.abdelaziz.canary.common.entity.CanaryEntityCollisions$1$1.computeNext(CanaryEntityCollisions.java:94) ~[canary-mc1.19.2-0.1.10.jar%23391!/:0.1.10] {re:classloading} at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:146) ~[guava-31.0.1-jre.jar%2372!/:?] {} at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:141) ~[guava-31.0.1-jre.jar%2372!/:?] {} at com.abdelaziz.canary.common.entity.CanaryEntityCollisions.getEntityWorldBorderCollisions(CanaryEntityCollisions.java:74) ~[canary-mc1.19.2-0.1.10.jar%23391!/:0.1.10] {re:mixin,re:classloading} at net.minecraft.world.entity.Entity.canaryCollideMultiAxisMovement(Entity.java:8929) ~[server-1.19.2-20220805.130853-srg.jar%23611!/:?] {re:computing_frames,pl:accesstransformer:B,xf:fml:openpartiesandclaims:xaero_pac_entity_handlenetherportal,xf:fml:openpartiesandclaims:xaero_pac_entity_isinvulnerable,xf:fml:openpartiesandclaims:xaero_pac_entity,re:mixin,pl:accesstransformer:B,xf:fml:openpartiesandclaims:xaero_pac_entity_handlenetherportal,xf:fml:openpartiesandclaims:xaero_pac_entity_isinvulnerable,xf:fml:openpartiesandclaims:xaero_pac_entity,re:classloading,pl:accesstransformer:B,xf:fml:openpartiesandclaims:xaero_pac_entity_handlenetherportal,xf:fml:openpartiesandclaims:xaero_pac_entity_isinvulnerable,xf:fml:openpartiesandclaims:xaero_pac_entity,pl:mixin:A} at net.minecraft.world.entity.Entity.redirect$bdn000$adjustMovementForCollisionsGetEntitiesLater(Entity.java:8840) ~[server-1.19.2-20220805.130853-srg.jar%23611!/:?]

Is there anything I can do with the settings oF SW or Canary to resolve this issue, even if only temp?

I'm also getting this same crash with minecraft and SW versions the same, but on forge 43.2.3

Is there anything I can do with the settings oF SW or Canary to resolve this issue, even if only temp?

For a temporary fix, I went into the world save, located the entity causing the crash and deleted it.

Try new version please.

https://legacy.curseforge.com/minecraft/mc-mods/sophisticated-wolves/files/4627162