Tile refresh & Map shading
When Locus refresh tile (because "Valid for" expiration), after drawing new tile, it is not shaded. Example.
And after zoom-in + zoom-out (or moving map to another location and moving back) it's ok (Locus already has new tiles in cache and can draw it in one step - not like first time: "draw old with shading - download new - draw new without shading").
This problem appears with all maps: online / offline / raster / vector.