If your FulGaz video keeps stopping or you see "0" power on screen while you are still pedalling hard, the culprit is usually the signal from your trainer being blocked and dropping connection.
Like all fitness apps, FulGaz simply reads the data coming to it via the Bluetooth antenna in the device running FulGaz. If no data arrives, FulGaz displays no data. Fortunately the problem can be solved.
FulGaz can suffer from interference a lot more than other apps because of the detail in the ride data. It will be controlling the resistance of your trainer every second of every ride. Reducing any nearby interference will result in a much smoother and enjoyable experience!