Since the last beta release i can't see any airspace in the map

Check your view settings and "Scenery Library" -> "Airspace Libraries".

The solution is less detail in the map: at maximum the airspaces go down

Do you have "show or hide all airspaces" Icon selected? 2nd row of tabs about the middle of the tab line-up.

https://fselite.net/news/little-navmap-2-4-4-update-released/   will show it.

Edited November 20, 20205 yr by w9nwrwi

15 hours ago, masconti said:

The solution is less detail in the map: at maximum the airspaces go down

There is a limit for shown objects to avoid freezing. You'll see a message "Too many objects" in the status bar. As a result the map is only partially filled.

Alex