Learn how to fix Mobizen quitting and exiting abruptly
The reason why your AirCircle is disappearing is because you have insufficient available Random-access memory (RAM). Before recording with Mobizen, free up RAM through your settings!
*Note! Some devices will not act normally due to the fact that it has less than 1GB of RAM. Check out if your device falls into this category here.
How to Free up RAM on Your Device
1. Go into your Device Settings
2. Select Memory
3. Select "Memory used by apps"
4. Select the apps that you are currently not using
5. After clicking on the information button, force stop the app