Waypoints are shown as black squares on the map

Hi, I have a problem with waypoints/favorites that are shown on the map. Instead of showing the waypoint symbols/icons they are just shown as black squares (see figure).

I'm running on software version 5.70.
Neither a reset nor resetting the symbol helped.

The waypoint symbol/icon is displayed correctly in the waypoints/favorites list.

Is it related to "Fixed issue where waypoint icons and straight line navigation track were not visible on map with black background." from the latest beta changelog?

Does anyone have an idea or the same issue?

Cheers