I added an almost concerning amount of mods to my modpack, and it loaded just perfectly, no error during mod loading or anything like such. However, when I went to use my test world and try to load it, the game would crash after the rendering completed, so basically the period of time before loading in and rendering the world.

https://mclo.gs/s9s2EdC

Try other builds of Zeta

Still same crash man, I really don't know what could be wrong.

Also try other builds of Quark

 

If there is still no change, make a test without Zeta and Quark

I went ahead and tested older Quark builds, still nothing, but I don't get why suddenly now, Zeta and Quark are messing the entire thing, they used to work perfectly find barely even a week ago. At least it works now.