I couldn't open any worlds because it keeps crashing a lot. the version is 1.4.0 or up
but 1.3.0 or below works fine

Affected Versions

• Minecraft: 1.12.2
• Forge: 14.23.5.2768
• TenshiLib: 1.2.0
• Improved Mobs: 1.4.1

crashed files
-client https://pastebin.com/MiqmqMBP
-server https://pastebin.com/7pxMNduU
i don't know why they're two of them

nope just forge

can you try a newer forge version?

are you using sponge or something or just forge?

ok it worked, also l found a bug in 1.4.1, in the config file I put minecraft:zombie in the mob attributes blacklist but it didn't work. maybe did i do it wrong or something? same as the other blacklists

ok it worked thanks