Wildly inaccurate consumption

I have 2 cars set in my account, my car and my car with a caravan. I have set the reference consumption to 295Wh/km, and maximum speed to 100Km/h.

However, when I try to add a trip, it will almost let me drive from charger to charger. It calculates the route with a consumption of almost 600Wh/km:

I have replicated a trip I took last year with this car and caravan and it makes me stop every hour:

In reality, I took the trip with only 2 charging stops. (And that roughly in line with what ABRP planned at the time)

I have made above screenshot with the web app, but it happens also in the Android app.