I am hosting an FTB Infinity Evolved Server on 1.7.10 version of Minecraft, with a Carpenter Mod Version 18.104.22.168. Non-OP players are unable to place blocks inside the wedge carpenter blocks, always resulting in the block being placed next to the carpenter block.
I have tested to verify whether the issue is with OP permissions and it appears that others were able to put blocks inside when I gave them OP permissions temporarily. However, when I de-opped myself, I was still able to place blocks inside, and some other users were also able to place blocks inside without the OP status.
How can I fix this to allow all non-OP players to interact with carpenter blocks?