I used an online website to generate a custom "/summon" command (minecraft.tools) and copy and pasted.
It spawns, but shortly after the game freezes. I was using repeating clocks to add scores to my custom mob, but I've tried several different custom mobs and they all crash.
EDIT: Most of the time when I force quitted the game, the last thing in the log would simply just be "Stopped server"
https://www.youtube.com/watch?v=i5j6I0cnD2Y - Video of Bug
Linked issues
Comments 4
summon command:
/summon Zombie ~ ~-2 ~ {CustomName:Queen,CustomNameVisible:1,Attributes:[{Name:"generic.maxHealth",Base:40},{Name:"generic.followRange",Base:500},{Name:"generic.attackDamage",Base:5}],ArmorItems:[{id:"minecraft:leather_boots",tag:{display:{color:0}}},{id:"minecraft:leather_leggings",tag:{display:{color:0}}},{id:"minecraft:leather_chestplate",tag:{display:{color:0}}},{id:"minecraft:skull",tag:{SkullOwner:{Id:"8364672a-8ae4-473b-98bc-504f03f18920",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvM2M2OWJjMjBkOGQ4MzU5MjMxZjM5NTQ2MmUwNjU5YmNiM2Q2MmFkMjBhMjhmN2I1ZDU1YWVlYzg5Yzc3MzY4In19fQ=="}]}}},Damage:3}]}
the command works but crashes shortly after
Duplicate of MC-60182. Don't use such a high followRange.
Incomplete without command used.