Offline feature unable to download tiles for custom Styles

Environment

• Android OS version: all
• Devices affected: all
• Maps SDK Version: 10.9.0

Observed behavior and steps to reproduce

Moving from legacy SDK (9.7.2) to new SDK (10.9.0) I reworked the Offline feature of my app to use the new APIs as stated on the official documentation. Offline is working fine for Outdoor and Satellites styles, but for custom styles (we are using IGN and SwissTopo for instance) the SDK behaves as it's working but no tiles have been downloaded.

Indeed all properties from TileRegionLoadProgress are set to 0 and TileRegionCallback.run is set with region.error null and TileRegion not null as seen on this screenshot:

Expected behavior

Tiles from custom styles should be properly downloaded.

Inizia con la documentazione ufficiale di Android offline collegata nell’issue e riproduci il comportamento usando uno style personalizzato insieme a Outdoor o Satellites. Traccia il caricamento della regione di tile offline e i risultati delle callback per ogni style; l’issue è completata quando le tile dello style personalizzato vengono scaricate e la progressione e la callback riportano la regione completata.