My potter wouldn’t build the Trading Goods Monument even though I had all necessary items and level requirements.
I managed to deduce the problem - I had four Fine Crates showing as green in the build panel but none were in storage - they had all been deployed. Once one was emptied and returned to storage the Trading Goods Monument was built.
So there appears to be a bug whereby Fine Crates are not being shown as removed from storage when deployed, which results in locking the Monument build tree.
Version Number and Mods in use:
Latest, no mods.