There are currently no known issues with the backup or restore routines in TaxCalc. However if there are problems that occur then it is recommended to check the following attributes:
If there are still issues with backups, then it is recommended to contact the support team.
Sending a Healthcheck from TaxCalc will assist support in dealing with your problem, go to Help > Send Health Check to TaxCalc, and complete the information requested.
You can also send a manual Healthcheck by following the instructions in the Knowledge Base article How to send a manual Health check.