I'm not sure if this is the best place to ask, but is anyone else having a problem with aquatic mobs not showing up? I don't even have squids... If I try spawning them in myself, nothing happens, but I can still get stung by jellyfish even though I can't see them. I tried looking for a fix, but they were all for older versions of Minecraft.
need more information, what version of MC, MoC, forge, etc.
No well maybe some, it really depends if the mod is set to require a later version.. but I don't understand why you wouldn't update to 1.12.1 or 1.12.2 I have several 1.12 mods in my mc 1.12.2 instance working fine. There is no reason I can see to stay on 1.12 as the majority of mods seem to work in the later versions anyway.
Yes cms is optional past 1.7.10 I can confirm the 1.10.2,1.12.1 and 1.12.2 will work without cms however I always end up adding it back due to the mo creatures config not having any effect of controlling spawns I don't want.