Use IvBlockfor debugging. This design uses a standard, simple factory file, and goes through all the factory- and member-file processing. If you have some unexpected behavior, use this design to eliminate your IPT as one of the possible causes. If it turns out to be an ETO defect, it will then be easier to report.
Writing a test rule? Prefix it with “_”. This will put it at the beginning of the category, where it’s easy to find.