Cause

There are several interruption points in the project which are star sources and the have the same device identifiers.

Solution

Possibility 1

Delete the redundant interruption points which are star sources.

Possibility 2

For the interruption points that appear more than once, enter different device identifiers.

Possibility 3

Double-click the redundant interruption points which are star sources and, in each case, deselect the check box Star source in the Properties <...> dialog.

 

Refresh the connections and then start a new check run.