Progress prediction when GPS becomes unavailable

Hi, I really miss the feature from premium navigations, where the navi assume speed and position when gps signal is unavailable.

My typical use case:

Driving with 80~100 km/t. Enter a tunnel under a river (could be Elbe in Hamburg).

Expected behavior like other premium navi: Navi assume the car continue with the speed when gps signal became unavailable and that the car stays on route.

ABRP behavior: Car moves randomly around in the water way beside the tunnel and starts re-routing whenever it hits something on the map.

Could this please be considered as a future improvement.

Thanks for the best EV-Navi 👍