Vector map auto-load loads often wrong maps, so no map shown

I never observed issues with Vector map auto-load for a long time, but now (Locus 2.14.1 and maybe 1-2 versions earlier) Locus loads often wrong maps, for example

* Move the map center to Zurich and Swiss vector map is loaded automatically. Fine. I moved the map center around (still within Zürich) and suddenly map for France is loaded, so I have no map but only grey.

* I was in the mountains of north-west Slovenia and often the map for Italy or Austria was loaded even though they did not have any data for the map center. Even when moving out further and those maps had no data at all, Locus did not change to map for Slovenia, I had to do this manually. This happened up to 10-20 times a day :-(

As a workaround, I switched Settings > Map - advanced > Vector maps > Map auto-load on and off depending on my needs.