Installed NPM 10.1 in a Lab environment.
Set the description of a port on a device to ABC-P1-A and let it collect traffic data (had a problem in previous revisions that would loose historical data if port description was changed).
Changed the port desc. on the device to ABC-P1-B and did a Poll and Rediscovery. The port desc. now shows ABC-P1-A - ABC-P1-B (but in the device it shows ABC-P1-B) even after running polling and rediscovery several times.
Changed port desc. to ABC-P1-C and it does not update any more.