ApplicationWindow border is visible after changed from Portrait to Landscape view

Until Qt 5.12.5, there was no issues in the Android of changing phone orientation. After 5.14 update, the ApplicationWindow border become visible to the right and bottom of the screen , when the phone orientation is changed from Portrait to Landscape, in almost all Android devices. This border become visible in all orientations after this and restarting the app is the only way to get rid of the border.