Screen Fluctuate While Testing after Exporting

Screen Fluctuate when i export app to test

1. I make the app

 2. Export it
  3. Install and Run
  4. it starts fluctuating every 3 seconds
  5. and after every fluctuate it restore the data of app.

i was just need to Test my Sign system

And it starts fluctuating and stopped me to test my App

2 pictures left more coz i am new so i can put only 2

My Android version is 4.4.4 and i Also tested it on 5.1.1 and later

Can you give the error you’re getting, on Android 4.4.4 and Android 5.1?

@hammerhai hey sorry for late but i am having this problem after every exported project on my phone and others phones too. If you can watch this to understand my Problem please solve it help me.