No Route planning on A45 btwn J7 & J8

Today around 5.50 PM CET I was travelling in Germany on the A45 South Bound between Junction 7 “Dortmund Witten” and Junction 8 “Dortmund Süd”

ABRP wanted to route me via A40, B1 and B54. At first I thought it is just a wrong live traffic information, because Google Maps said there was nothing wrong.

So I continued on the A45 and after several reroute attempts ABRP stopped routing after passing Junction 7.

A few hundred meters before arriving Junction 8 ABRP started routing again.

Why is this section marked as closed?

I had the same problem several weeks ago om the A3 South Bound between Oberhausen and Duisburg.