I was trying to move 2 Cathedral- Arch Chairs and a table and it allowed me to place one intersecting with a table. This cause a problem for a while as the workers were “confused.” They just stood there for a while and eventually placed the chairs down where they were, but as items would be in a stockpile rather than installed. I think the table ended up in a stockpile.
Afterward I was able to give different placement commands and everything worked out. The reason I think the table ended up in a stock pile was that I could not see it anywhere else. However, there was still a ghost for the placement order. I fixed this by giving a different placement order. In all cases I had to select the ghost to give new placement orders.
I am using the latest release version.
Here are some images to show what I am talking about.