Minimap ZOOM on ND causes 2second stutter when planning for BTV during the flight

[klusik]

Hey, how to solve the issue, when planning the BTV point during the approach (or before), there is like 2-second FREEZE of the sim, before the map is loaded? After that it works instantly if I try to do it again, but only during the first use. Freeze during the departure as well, if I want to see the map of taxiways. 

When I go ZOOM, it freezes up on this page with MAP LOADING text. 

[frank_m]

Exactly the same happens on FBW A380. So it is maybe not an issue of the plane, but a Navigraph issue.