I'm not explaining this very well lol but I filmed some clips with my S21 and I am trying to put it together as a movie to put on tiktok.  

 I filmed all of the clips using the full ratio setting if I am saying that correctly.  When I went to edit using the editor, there was only the 9:16 ratio option and not the full option from what I can tell. 

 So in the editor, I was using that little expand button that makes it fill the screen. Some clips only needed me to do that once and some clips no matter what I do will revert back and there is black spacing on the sides. I did a test upload to tiktok to see if it would be noticeable and it was.

 As I type this, I wonder if I am going to insist on using the full option and not 9:16 when recording, do I need to get an editor that allows you to edit in full?  Or am I missing something with this editor?

 I filmed all of these clips at the same time using the same phone so I think it is strange that some of them are expanding to fill the screen no problem and some won't no matter how many times I click on that expand button.

I wonder if I should just restart the phone to see if that helps anything.  

Anyone else having this or a similar problem?