Problem with Video Recording

[VAPCT]

I am using Samsung Galaxy M30S mobile. While taking recording video my background is shaking and light is becoming bright and dark according to the person movement. 

I faced same problem while I was using Samsung Galaxy A6 plus.

[Samsung_Support3]

Dear Samsung Member,

Greetings from Samsung Customer Support!

Please perform the below mentioned steps to resolve the issue:

1. Clear camera application data.
Settings >Apps >Camera >Storage >Clear Data.

For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support

[VAPCT]

I did point 1 but still the issue is not solved