runaigoalselector causes ConcurrentModificationException log snippet

[22:21:51] [Server thread/INFO]: NilsRobles issued server command: /mm mobs spawn Test_Mob_Bug
[22:21:51] [Server thread/ERROR]: Entity threw exception at OpenWorldFinal:2043.2149342448672,5.0,2053.534085605739
java.util.ConcurrentModificationException: null
	at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:756) ~[?:?]
	at java.util.LinkedHashMap$LinkedKeyIterator.next(LinkedHashMap.java:778) ~[?:?]
	at net.minecraft.world.entity.ai.goal.GoalSelector.tickRunningGoals(GoalSelector.java:155) ~[?:?]
	at net.minecraft.world.entity.ai.goal.GoalSelector.tick(GoalSelector.java:148) ~[?:?]
	at net.minecraft.world.entity.Mob.serverAiStep(Mob.java:960) ~[?:?]
	at net.minecraft.world.entity.LivingEntity.aiStep(LivingEntity.java:3487) ~[?:?]
	at net.minecraft.world.entity.Mob.aiStep(Mob.java:706) ~[?:?]
	at net.minecraft.world.entity.monster.Monster.aiStep(Monster.java:45) ~[?:?]
	at net.minecraft.world.entity.raid.Raider.aiStep(Raider.java:111) ~[?:?]
	at net.minecraft.world.entity.LivingEntity.tick(LivingEntity.java:3136) ~[?:?]
	at net.minecraft.world.entity.Mob.tick(Mob.java:462) ~[?:?]
	at net.minecraft.server.level.ServerLevel.tickNonPassenger(ServerLevel.java:1492) ~[?:?]
	at net.minecraft.server.level.ServerLevel.lambda$tick$8(ServerLevel.java:940) ~[?:?]
	at net.minecraft.world.level.entity.EntityTickList.forEach(EntityTickList.java:42) ~[purpur-1.20.4.jar:git-Purpur-2136]
	at net.minecraft.server.level.ServerLevel.tick(ServerLevel.java:917) ~[?:?]
	at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1749) ~[purpur-1.20.4.jar:git-Purpur-2136]
	at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:486) ~[purpur-1.20.4.jar:git-Purpur-2136]
	at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1548) ~[purpur-1.20.4.jar:git-Purpur-2136]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1236) ~[purpur-1.20.4.jar:git-Purpur-2136]
	at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:323) ~[purpur-1.20.4.jar:git-Purpur-2136]
	at java.lang.Thread.run(Thread.java:840) ~[?:?]