We upgraded from NPM 12.0 to 12.3, and using the all-in-one installer, installed UDT new as well. We have to rediscover our Network nodes using Network Discovery to find the ports, before we can have the UDT module scan and find them. When i rediscover a node, it allows me to specify Ports. Please enable a feature where we do not have to entirely rediscover our networks (A pain when adding nodes and interfaces manually) to discover the ports i'd like to manage in UDT.
SolarWinds Support case: 00116352 led to this conclusion and request.