colored wood recipies not working

[Former user]

All slab recipie from colored wood slabs return oak wood slabs fences doors and so on do excactly the same. so no matter what wood i use it always retuns in oak wood from crafting table!

https://youtu.be/evuNVjnrdj0

[Alex Binnie]

What mods do you have? And does this apply to vanilla and forestry slabs as well? I can't seem to replicate this using a crafting table