SKScene not showing entirely on the screen

I am trying to make a landscape game and trying to display the scene in full screen. However for some reason it is not covering up the whole screen.

I see 2 big black bars around the scene. My scene background color is different than the background color of the view.

(I am using UIKit)
My SKScene Dimensions: 1334x750
View Controller Presentation is set to Full Screen.
My app's Requires Full Screen Option is also checked.
The scaleMode is .aspectFill

I think this is happening since I have updated to iOS 14.

Please help me out...
Thanks!
I'm seeing this same issue, Xcode 12.3, Deployment target iOS 14.3. I can confirm that the problem happens even when creating a new project in Xcode, using the default game project selection. Super frustrating.
Ah, after some trial and error I found the solution. There needs to be a Launch Screen File selected. Click on the Project, then select your game under Targets. In the General tab, scroll down to "App Icons and Launch Images," then for Launch Screen File select the Main storyboard (assuming you started with the generic Game project template).
this is maddening.. Thanks for posting your finding here. Been fighting and fighting this
Setting the launch screen resolved my issue. This looks completely unrelated but it solves the issue.
Thank you @ chrisl7777777
Setting the launch screen also fixed it for me.
SKScene not showing entirely on the screen
 
 
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