TMSFNCmaps does not work in sandboxed (app store deployed) MacOS app

Hi - I deploy a Delphi 12.1 app with a TMSFNCmap (latest version) to MacOS (ARM, Sequoia). This works fine with "normal" deployment. However, when releasing the app on App Store, the map is blank. What should I do - could there be a missing entitlement? I have included the "Outgoing network socket for connecting" entitlement, but not the "Incoming network socket for listening". The TMSFNCwebbrowser component works fine in the app store version, accessing external web pages nicely.

Which kind of service do you use?

OpenLayers

It's unclear exactly what could be going wrong. Potentially, you can use remote debugging by using Safari, and see in the console if there are errors

I'm afraid this didn't bring me much further. I have also added a lot of possibly relevant entries in the plist.info and entitlements, to no avail. I will have to remove TMS FNC Maps from my app, unfortunately. I have also reverted from TMS FNC Webbrowser to the FMX TWebbrowser, to avoid the dependency of Webview2 and DLLs in the Windows version.

I would be grateful to hear if anyone else has managed to sandbox the latest version of FNC maps, with Delphi 12 and ARM, for the MacOS app store.