Osmand 3.9 no longer shows gpx routes

[siegbert-kokott]

For Osmand 3.7.4 I created a GPX tour for cycling and motorcycling.

In Osmand 3.7.4 everything has and still works best. My created in GPX format
Route is displayed correctly (blue GPX route with direction arrow).
As an Osmand GPX setting, I have the function:
"Prepare Osmand Route for First and Last Section".

It's a great feature. Here I can also use the given route
will then be returned to the current route.

After the update I only see a red dashed line that is zigzag
is shown in the map view.

The blue GPX route on the road is missing.

How do I get the GXP route visible again?

Can I upgrade again to version 3.7.4 if necessary?
If so, then how.

Greetings Siegert