"Is it you can move freely around the scene without any indication of safety boundary even when you are far away from the UI?" -- yes, exactly. So, firstly I setup safety boundary and tested it in Pico menu. Everething works fine. If I cross created safety circle, I see warning wall and than after moving outside "See-Through" mode activating. On Pico Neo 2 all of this works good in Pico menu and in all applications as well. But on Pico Neo 3, when I start some app (my app made with Unity or Pico demo apps) safety boundary does not appear when user approaches it. So, using some app on Pico Neo 3 you can go as far as you want, even if your safety boundary activated. Maybe I should acivate it for applications somewhere in developer options or something like that?
My current version of PUI: 4.4.7