This is my graph from the VRM Portal which my Multiplus II GX uses for DESS in Green mode:
However the prices in my app from my provider Tibber are this:
I've restarted the Victron MP2, I've selected another provider from DESS en switched back. Nothing helps...
I've noticed that my TIbber app was not showing the right prices until yesterday evening 22:00.
Maybe EPEX had a API malfunction and the VRMN defaults it to this graph above?
It should be almost negative around mid-noon according to EPEX: