Which modpack version are you using?
2.0.2.5
If in multiplayer; On which server does this happen?
Delta
What did you try to do, and what did you expect to happen?
Right clicking block on the enhanced build guide should place the block according to the shape I've set but it's not working.
What happend instead? (Attach screenshots if needed)
#OpenMods/OpenBlocks#755
What do you suggest instead/what changes do you propose?
Potentially fix it? As according to the issue i referenced, it seems to be some issue for non-forge server.