I have noticed that my system (in Finland) shows diagrams in graph view quite well, but almost every night roughly from 03.00 - 04.30 Am there is a break when my diagram shows only blank area without any line of power consumptions at all.

When I checked the figures in table mode I can see that system measures power figures from all phases during the time period mentioned above.

Are there any other users having similar problems with graph mode of power consumption?

If the uploads consistently stop and resume at the same time every day, it's possible that there might be a local issue, such as a network disruption. We recommend thoroughly checking your local setup to identify any potential problems. This could involve examining network connections and ensuring stable internet access.