Explanation of my issue is as follows: I have been using LibreNMS for a few years and have not really ever had an issue. I am needing to to upgrade from 1.36-35 to latest version due to age and some other misc issues…nothing major. I have a new install running on newer hardware and all is good as far as that is concerned. I am copying RRD files from /opt/librenms/rrd/ on old server to new server same location and then adding corresponding device to new server. Everything populates as I would expect with the exception of my historical overall traffic graphing data. My one and two year graphs on the new server show nothing, but I do have that data available to me on the old server. Would someone please point me in the right direction to get the historical graphs populating.