MacOS sees Navigraph Charts as an unidentified developer

I frequently have difficulty opening Charts on my Mac. I get a message that Safari can’t open "unsafe:navigraph-charts://…
There is a workaround in Security and Privacy by clicking (Open Anyway) against Navigraph but having to do this on frequent failures to open the app is tedious to say the least!
Is there a way to get the MacOS to identify Navigraph Charts as “safe”?

Hi…,.

Welcome.

Thank you for reporting this. We are looking into a similar macOS issue, and will investigate yours. It may take time. Thank you for your patience.

Cheers
Ian