Has anyone experienced issues with PU19 in test mode vs prod mode?

Hi gurus!

Has anyone seen differences in the files when running US Tax Reporter in production mode versus test mode? We have done several preliminary runs and validated the files in all environments (development, acceptance and production). All files looked good even the last validation in the production system - test mode, until we ran it in the production system - production mode and we noticed several differences from production system - test mode. It was obviously not expected that the values would change just by running production mode vs test mode, but it happened. Incident was opened with SAP but we have not been able to replicate the error in any of the non-production environments. We exhausted our options to find out what the issue could be. Out of ideas. Any help assistance would be greatly appreciated if someone experienced the same issue.

Thanks!