Tested on a Jolla 1 under SFOS 2.2.1.18:

1. PureMaps displayed no map after updating OsmScoutServer.
2. OsmScoutServer complained about missing the "mapboxgl world overview map" and hence did not start.
   I could swear I had downloaded it before (and OsmScoutServer was definitely working before the update). The MapManager also showed it as "missing". When checking for updates there, other maps were determined as updatable.
   So I just downloaded the "missing" GL world overview map.

Besides this little prelude, everything seems to be working as before, when walking around the block using voice navigation.
Are there specific things to look at?

P.S.: When checking that the "MapboxGL world overview map" has been downloaded correctly (sorry, missed to do that before the download), I noticed that mapboxgl/packages/tiles-world.sqlite exactly matches the size reported by OSMScoutServer on startup (13520896 bytes), but mapboxgl/glyphs/glyphs.sqlite does not: 75730944 bytes reported by ls -l, in contrast to ...
INFO: Missing data: Mapbox GL fonts (75,730,947)
INFO: Missing data: Mapbox GL World overlay (13,520,896)
I have not checked any other sizes, as they need to be accumulated over various files in multiple directories.
Well, if just the reported sizes are incorrect (either by OSMScoutServer or ls), that doesn't harm (in contrast to if incorrect file sizes are used internally in OSMScoutServer).