Whats the killer deal with Catalina?

[Sam_Rowlands]

@John_Crook

PS (added later) The only plug-in I am using (other than those that came with Xojo) is the CubeSQL.xojo plug-in which my app needs in order to do its job.

Is this the latest version of the plugin? I would check and see if there is a newer version which may have already solved this problem.

[John_Crook]

Thank you again for your help. I did not have the latest plug-in for CubeSQL so I updated it. However, this did not fix the problem, which I eventually traced to my app using an obsolete PrinterSetup string, that I had saved in a database.