Boy, I never thought this “3rd Party” series would have such an impact (be it simple or silly or critical).
Patrick explains us one such very important but simple issue: Using 3rd Party Series Reports in the Report Template Maintenance Lookup Window
I have to now check all my customizations’ resources which are created under this 3rd Party series.
And when I reassign the series for those resources, I am not certainly going to place it in PROJECT series. As Patrick quips in his post in one place, if you read it completely.