Why does the Galaxy S9 Camera app keep changing picture size by itself?

[Android Central Question]

Every time I open the camera app it changes the picture size to 7.9MP by itself. I want it to stay on 12MP. Anyone else having this problem?

 

[droiddeepak]

It changes to 7.9 only in full view mode.
If you turn full view mode to off, then it will switch back to 12mp