Not sure what’s wrong here but DESS reactive strategy is NO_WINDOW since 13:00 today and on VRM the prices for tomorrow are shown until 2:00 am only instead of the whole day. My Tibber app shows correct prices for tomorrow.
Same here
Maybe related: tonight we daylight-saving related time switch from CEST to CET 
Happens exactly at 2:00…
It works again 
…and it’s even forecasting the prices +schedule of tomorrow - which I like very much:
Our DST ended last night and we had the same issue. The DESS plan did not update most of the day yesterday, but did after 2AM. We’re on fixed prices. Just posting for anyone who comes across this bug in the future (I was very confused yesterday).