A little strange issue. The parameters allow to load automatically the vector maps when needed. Sometime it works well, but sometime not.
I am now between the Khabarovsk oblast map and the Sakhalin Island map. I choose the Sakhalin map manually : when i zoom on the Khabarovsk map, Locus load the good map by himself. Great. But if I come back on the Island : it doesn't download the Sakhalin map...
Nothing too bad : i just change it manually and it's ok. But that's strange, because it works with some maps but with others it doesn't.