Sodaq one + grove shield -> no power

We are trying out the grove shield for the sodaq one, but with no luck: we can’t get any power to the grove sensors. We measured the pins, all is ok except for the power pin: no matter what we do, it always remains at 0. When we use some cables to connect the wires using the second row of connectors, it does work.
Any ideas?

Enable the power by putting pin D11 High