So Mining with a diamond pickaxe Big holes does not mine 3x3.

Mining stone: Work perfectly: https://gyazo.com/c0c8fd5db4616210a4e7c0efb8832261

Mining copper ore (not enough roofs): https://gyazo.com/423279f3c54d44acaf0042618f2d52c5
Doesn't work.

Mining stones (Terra): https://gyazo.com/b9bb5476167c89e6cd4246213a161340
Doesn't work, and their stone is oredicted in case wondering.

I am not shifting at all in any of these videos.

Thanks for feedback!
Can you tell me version of NotEnoughScaffold?

I can not reproduce bug with latest version of Not Enough Roofs mod.
But i can reproduce with Terra. Hm. This behavior occurs because blocks don't have a required tool to harvest it.

https://github.com/KorDum/NotEnoughScaffold/blob/master/src/main/java/alhetta/notenoughscaffold/handler/EnchantmentEventHandler.java#L108
returns null for Soapstone for example.

version is 1.8

Is this actually a bug or is it user error? If it's a bug, is it fixed yet or in the works? I'm wanting to add this mod to my pack, but not if this portion is broken. I guess I could just disable the enchanting part if it doesn't work as expected until it is fixed though. ¯\_(ツ)_/¯

It is bug from Terra mod. Harvest tool is not set for block from Terra.