Hello Ludger,
I think Marek is right!
In former times it didn't matter in which sequence you opened a raster map and a vmap.
Now if you open the raster map after the vmap only the raster map is shown.
Then I have to put the raster map into the background.
I already wanted to report this but I have forgotten it.
Ludger and Gert, can you reproduce this?
Greetings
Werner