Although one can never rule out bugs, this version of the C++ PSN library has been in use for several years on dozens of projects so I would rate that possibility as ‘unlikely’
So to trouble shoot further
First make sure you can see the values for the trackers in the Wireshark capture. Use the PSN dissector to inspect the network trafic. If the values coming out of your server are good. Since you are using the example code, I expect this will be the case.
Second you appear to be using a MA lighting console. One of my colleagues with production experience with PSN and Lighting console, was kind enough to produce this guide to setup PSN
<Begin Help with MA>
PSN configuration MA / Photon
In order to make PSN ID values display in MA, you will have to patch at least one Stage Marker fixture in your project.
MA uses Stage Marker to link PSN ID data to the MA 3D world position. Once achieved, the user can use a lighting fixture to point at the Stage marker and enable tracking capability.
Here is how to patch a stage marker and make PSN data available on the MA system.
Go to “Patch and Fixture Control” under the “Setup” menu of MA and create a new fixture layer
On the “Add Fixture” menu select “From Library”
Type "Stage marker’ in the “Fixture” search text bar and select “Stage Marker II”
Add as many Stage Marker you need for tracking. Adding one single Stage Marker fixture is sufficient to enable values display of all PSN IDs:
Close and save your patch before going to the PSN configuration menu:
In the “PSN Network Configuration” menu, make sure Multicast address and Port corresponds to the external PSN server settings and that your client is enabled. Click on “View tracker”
(Note if you are using the default values, the multicast address is 22.214.171.124)
You should see a list of all available trackers. In green is the active ones and in black are the ones that were present and added to the list but not currently active.
You can then attach your Stage markers to PSN IDs by filling in the “Fixture ID” column. This would allow you to use a lighting fixture as a tracking device. This feature requires that your fixtures are positioned in 3D in your MA project.
<End Help with MA>
Hopefully this’ll get you going