Missing data handling
As was pointed out in #160 (closed), ndscope now indicates periods of missing data. However, I noticed some anomalous behavior, see the screenshot below: I'm comparing long term trend lookback for ~600 days. ndscope (left) reports that the data is missing for ~1 year. However, while I believe that there are segments missing, I don't think the data is really missing, because I can in fact retrieve it with dataviewer (right). Is dataviewer somehow computing the trend data on the fly? The NDS server both services are looking at are the same, it is the 40m frame builder.