When I go back from "simulation" or "flying" back to the normal map screen, showing a route, the virtual radar part of the screen is covered by a black stripe and cannot be seen any more. Nothing helps. The only way to show the virtual radar again is to switch off/on SkyDemon.
Is there any easier way to get the virual radar display again? I found none.
I`m using SkyDemon V3.1 with Android and a Nexus tablet

How very strange. I will give it some thought, but at the moment I can't really think of what could be going wrong, and therefore can't think how to address whatever it is.

Nexus 7 with Android 4.4.4.  Tried to reproduce the problem, but it works as it should on my device.