SUMMARY:
This document shows one issue that "You have included an invalid argument" error appears when running Freeform SQL report in Strategy Web 9.4.x. If the report is duplicated, all the mappings would disappear in the duplicate. This is caused by some inconsistency of report definition.
SYMPTOM:
"You have included an invalid argument" error appears when running Freeform SQL report in Strategy Web 9.4.x as shown below:

Your request could not be processed. Please try again. If the problem persists, contact the Administrator. You have included an invalid argument.

CAUSE:
This is known behavior where the report definition seems to be have become inconsistent. In order to track down the cause of the inconsistency, customers encountering this issue should make note of Schema-related changes, Object Migrations, or error messages prior to experiencing the problem. Change Journaling, if it has been enabled, can help in preserving this information.
ACTION:
Contact Strategy Technical Support for further assistance to remove the inconsistency.