Recently there has been a problem with the use of the "Own Database" in our DIALux 4 software. This is unusable and various error messages appear.
We found out in our test center that this problem is definitely caused by a Windows update.
Uninstalling the Windows update (KB4493509) (operating system build 17763.437) solved the problem.
Microsoft is currently working on a solution to the many problems caused by this update.
These two links are only available in German.