If a solution was given before, I apologies, I haven’t seen it.
When no record is selected in a table view, the details view will show by default the details for the first row instead of being blank or show “No items selected”.
I have managed to find a walk-around. I don’t know why it works, but it works.
I have created a duplicate detail view
added both in the dashboard
set the show if to a condition that would not validate | eg.: CONTEXT(“view”)=“Do not show”
So you have 1 table view, and 2 detail views in your interactive dashboard? And which one did you put the show_if on?
Are the table and detail views set on different slices of the same table? That’s the most frequent cause of the issue you mentioned that I’ve seen. If that’s unavoidable, you can create a default/blank record at the top of the table that will display until another record is clicked.