Hello, I built a drone using pixhawk 2.4.8 and ublox m8n gps module. The first flight was very good and stable, I flew in stabilized and loiter modes. I had 12 satellite connections in loiter mode. When I went to fly the drone again the next day, I saw that the satellite connection was unstable. The weather was very clear, there was no cloud or wind, the esc and motor cables are as far away from the GPS as possible. I waited for about 20 minutes, during which time the satellite connection was established as sometimes 6, sometimes 3, sometimes 4, sometimes 7, and I could not fly. how can i solve this problem
