Bug - Row not found | "" is not synced

I have used cross doc to import a table into a doc. That table has a look up to a second doc. I import the second doc in. Typically that changes the value of the cell from a hyperlink to a row-reference/array.

However in this case I am getting an error I don’t understand:

Screen Shot 2020-04-11 at 9.18.19 PM

I’m also having this, where I’ve got two lists of people (people are listed in another table) combined to one column in my main table.

I’ve synced both the main table and the people table to a cross-doc sync.

The select lists themselves sync over fine, and show the people, but the combined column shows “…” and gives this error