I noticed the same thing last week, after the latest update. Does the “Real Time“ view show power flowing from/to all parts connected to the inverter?
In my case, the plant settings/data source for the battery had become corrupted by the update, so the app wasn’t getting the data for the battery, without which it couldn’t estimate the sections within the pie. Changing the plant settings/data source for the battery back to “inverter summary” fixed both problems.