Zoom too far and switches to other map?

[FriendlyFriend]

I successfully created two maps for offline use hiking out of cell range.

One - I just downloaded a huge vector map of my US state.

The other is high resolution google sourced satellite from Mobile Atlas Creator / MOBAC - it goes pretty far - says zoom level 19.

The problem I run into is when I zoom all the way into the satellite view, at the last step before zooming in all the way it defaults back to the vector graphic.

So it's pretty impossible to use the satellite view.

Any tips how to get around this?

I suppose I could take the vector map out of the folder but I need to switch back and forth in normal use.