In a Neoforge 1.21.1 I was trying to fit Effortless Structure into my modpack, but then found out that these three mods didn't work together. Oddly enough, Placebo works fine with Effortless Structure alone, same for Cobblemon working just fine with Effortless Structure. But when both Placebo and Cobblemon are installed along with Effortless Structure, the instance crashes

Mod Versions:

• Placebo-1.21.1-9.6.5
• Effortless Structure 3.4.0
• Cobblemon v1.6.1

Here's a Crash Report from an instance with these mods together, along with Kotlin for Forge (Which worked just fine with both Placebo and Effortless Structure without Cobblemon): https://mclo.gs/JlXE6uQ

This is caused by Placebo beta testing a feature which boots the Neo Game Event Bus much earlier. This should be fixed in the mod which is actually triggering the crash (which appears to be effortless).

Not sure why it only happens with the three mods present though, I would expect to see this with just Placebo and Effortless.

Understood! The mods keep on crashing when together, but I'll consult the Effortless issues instead, since you mentioned that the crash comes from effortless. Thank you for looking into the issue!