Hand tracking with Pico 4 Ultra in SteamVR

Hello, I would like to know if someone here can help me activate hand tracking on the Pico 4 Ultra connected from a PC, weeks ago I visited my brother who has a Meta Quest 3 and I tried hand tracking on his PC, then I wanted to switch to my Pico 4 Ultra to test them and they worked perfectly, but when I returned home and wanted to connect, I noticed that it does not detect them, Steam recognizes the position of my hands but I cannot make any kind of gesture with my fingers, does anyone know what I can do?