Feature placement bug when mod used with other mods

My mod, only when used with other mods, spawns TONS, I mean TONS of oak trees EVERYWHERE even in modded biomes, and in water. I want to get rid of this bug because I enjoy playing my mod and it wastes everything.
I don't have any idea why this would happen, the only thing i'm sure is that it is my mod that does this, but it does not do this when it's the only mod installed.