Issue Resolved!
As of December 10th, 2019 this issue should now be a thing of the past as Microsoft finally released the fix for the remaining versions. If you are still experiencing this error (“Error 3340 – Query ” is corrupt.”), update your Microsoft Office installation and it should go away. All the details are below.
The Bad News
Well it would seem Microsoft has, yet again, let another MAJOR bug slip through its net causing widespread mayhem of the Access world!
This latest bug impacts all flavors of Access 2010+ regardless of bitness, installation type (MSI vs CTR, …), …. so Access 2010, 2013, 2016, 2019, Office365, including the Microsoft Store edition of Access, are all impacted by this latest issue regardless of file format. (Yes, now is the time to panic!)
If your database suddenly started report an
Error 3340 – Query ‘Your Query Name’ is corrupt.
then read on!