Position arrow freeze and jump random

Samsung mob. Android 11. App when biking. Southwest coast of Portugal, close to Eurovelo 1 route.

Position arrow may take minutes before each update. It freeze. Sometimes the arrow jumps miles away. And stays there. Also the arrow points in opposite direction than I bike and the route is set up. All this happens all the time and makes the app useless.

When I quit / stop the app. And than restarts, the arrow usually locate correctly.

However the app always know where I am. That I can see at the info field at bottom of the screen.

The first time I used the app, 3 days after download it the first time. It worked perfect for the whole day. After that it has behaved as described.

Br Lars