Hey Aslains,
-I am using the latest mod pack.
-Yazom 66% and Classic Cam did work in the previous patches together installed with the old modpacks. The first screenshot for example is taken just 1 week ago in the 12.4. patch
-Either Yazom 66% or Classic Cam is the troublemaker right now. If you say you didn't change anything with Yazom then it has to be classic cam.