Final answer:
Possible reasons for not seeing the exception to closing date report in the Reports Center include insufficient permissions, browser compatibility issues, and outdated software versions.
Step-by-step explanation:
A possible reason why a client might not see the exception to closing date report in the Reports Center is insufficient permissions. If the client does not have the proper access rights or privileges, they may not be able to view the report.
Another reason could be a browser compatibility issue. Some browsers may not be fully compatible with the reporting system, leading to display issues.
Lastly, an outdated software version could also be a reason. If the client is using an older version of the software, they may not have the latest features and updates, including the exception to closing date report.