Hi,
It's possible that there is an issue with the database itself, such as corruption or a limit on the number of records that can be stored. Here are a few steps you can try to troubleshoot the issue:
- Compact and repair the database: This process can help to identify and fix any issues with the database that may be preventing forms from being saved. To do this, open the database in Access and go to File > Options > Current Database. Under "Application Options," click the "Compact and Repair Database" button.
- Check for any error messages: Even if you haven't seen any error messages, it's possible that there are errors occurring behind the scenes that are preventing the forms from being saved. To check for errors, go to File > Options > Client Settings and check the "Show add-in user interface errors" box. This will allow any error messages to be displayed when they occur.
If your database is corrupted and manual workarounds are not working, you should probably try repairing it using a 3rd party tool.
Best Regards.