You’ve run into a bug where a container that has items, is undeployed and stored inside another container. So your mason didn’t know how to get to the donation boxes. (@yshan, has this bug returned? 
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To fix it, deploy the 3 leather chests with the place item UI, and queue the fountain again.
The building that is next to the water is stopped because the hearthlings can’t reach that side. Make a ladder separated from the building, so that the hearthlings can reach the first floor inside the water, and they’ll start constructing scaffolding for that side of the building.
About your other unfinished buildings that are missing items, despite being in the inventory, I’m not sure why they don’t place them. Maybe when they finish with the last building they will remember to place them 
Thanks for reporting!