iOS: Making horizontal arrangement with slider inside visible with code makes the slider size small

App Inventor for iOS
1

This was tested on iPhone 12. It works fine on Android.
Making horizontal arrangement with slider inside visible with code makes the slider size small.
But making horizontal arrangement with slider inside visible with the property UI is fine.

Before clicking the button

IMG_3688
IMG_36881125×2436 89.8 KB

After clicking the button
IMG_3690
IMG_36901125×2436 94.6 KB

Try for yourself:
BugIOSSlider.aia (1.6 KB)