I used Group:Number:Sum for a while, was summing up energy values in order to display whole power consumption of an KNX actor. This was working fine for months, also the charts were displayed correctly but for ~2 weeks the calculation seems not to work anymore. The underlying items still deliver data, only the “Group:Number:Sum” doesn’t create the sum.
I added one new rule and I changed the persistence (created a new group for items which I want to have persisted - the affected items are part of these new group).
For better understanding a screenshot of what is not working anymore. In the top right corner the value is a summary value of the power consumption. This is correct. But the displayed value in the chart is not correct.
Do you have unplugged device, but binding still in items file???
I have same problem with HTTP binding, when i have unplugged device from power, all charts who use information from HTTP binding stop work, and all items thet use HTTP binding refreshing slow.