I tried to place any type of slab and my cmd window for my server says I can not place block because I do not have enough in the slot to build with, when in fact I am holding 20 of them.
Note: I have just noticed the following....
I am over capacity on my server, however, I have this set in my server.cfg
ALLOW_PERSONAL_INVENTORY_OVER_CAPACITY = true //Personal Inventory can go over capacity
but even though I have it set true, it seems in game it does not like the slabs, could this be what it means on my server cmd window by " i do not have enough in the slot " ? maybe it thinks since i am over cap. I don't really have enough? Just throwing the thought out there.