External Data import from SharePoint list - columns missing

[RoundaboutSkid]

Hi,

I am importing a SharePoint list into my Visio drawing. Have done this numerous times with no issue. However, there is this one list that causes issues. Some of the columns in the list does not show up in the imported data in Visio. I have even created a new column, replacing the old, but nothing helps. Has anyone ever encountered similar behavior?

[RoundaboutSkid]

I may have concluded the source of the error - but not found a remedy.

When the column is a lookup column allowing multiple choices, the column is omitted. When I change to disallow multiple choices the column appears in Visio.

This bugs the heck out of me.