UIImageView intrinsic size in Interface Builder

I'm using Xcode 11 Beta 5.


I have created an image set in the Asset Catalog, and I'm using this image in my Launch Storyboard file. After dragging an ImageView object onto the storyboard and specifying the image, when I set the constraints to Align Center horizontally and vertically, the resulting preview (in Interface Builder) shows the image going way beyond the screen bounds, and NOT adhering to the expected intrinsic size.

Strangely though, when I build and run on the Simulator, then it shows the image at the CORRECT (expected) size in the launch screen. I've checked my image sizes and resolutions in the Asset Catalog, and there is no issue with those.

Am I missing some setting or configuration for Interface Builder?