QB Issue Resolution:

You can clear the recent list by Apple Menu->Recent Items->Clear menu.  Its a system preference so it could become damaged by another application or lost as part of an OS bug as well.

The fix is to repopulate it by opening the company files. By default the files are stored in your Documents folder. If you have more than one version of any one company file make sure you open then that was most recently modified (as the other one is likely out of date).

You can also search using spotlight for files that end with .qb2016.  That will find all the QuickBooks Mac 2016 files.

Resolution for Issue 'Suddenly the File/Open recent command no longer lists the companies I keep the books for.' available: Yes (Solved).
Source: Intuit Community forum.

Suddenly the File/Open recent command no longer lists the companies I keep the books for.: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for Company File
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!

Error Recovery for Company File [Canada]
E-Tech is the #1 Quickbooks data migration and Conversion service provider.

Get 50% off Quickbooks Online

Click Here for 50% off!

Additional Support Options: