Rather a detour than taking an earlier charging station?

In Germany: Planning from Stadland via Tangermünde to Bischoffen, preferring Ionity chargers.
ABRP doesn’t use the new A49 (Kassel - Homberg), but rather takes the A7+A5 (probably due to an Ionity station on that stretch) => 1205km.
If I choose the greyed option of the A49, ABRP chooses a detour for a Ionity charger (Breuna) outside the route => 1245km.
Only if I add the Ionity charger Lutterberg manually, the optimal route is found => 1196km.