Choose a different resolution for your Android recorder.
- Open the Settings panel (tap the upper right ... menu)
- Scroll down to Image size and top it to choose a different resolution
- Try recording again and repeat steps 1 and 2 if the chose resolution is still not working.
As background, some older Android devices inaccurately report their supported video resolutions so that Camio chooses a default resolution that is not actually supported. If this is the case, you'll typically see a green image like this one: