We have discovered a bug when working with feedback on UDP devices.
The feedback doesnt initialize and therefore you wont see button presses if you are using feedback to set different buttons in the correct state.
This are seen in Neets Project Designer 1.12.3.
A workaround is to build your project with all the feedback you need, then edit your device, add a empty LAN sequense to your device. Save changes, upload to your Neets Controller and UDP feedback are working.