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P001023: Main terminal is not assigned to the first function template

Cause

A main terminal is assigned to one of the following function templates of the selected part, rather than to the first function template.

Solution

Possibility 1

Make another terminal the main terminal if there is already an assignment to the first function template.

Possibility 2

Select another terminal part for which it is guaranteed that the main terminal can be allocated to the first function template.

Refresh the connections and then start a new check run.