Object tree not holding the object if the UWP app is in full mode

My application under test is UWP based. When the application is in full size mode and then if I spy an object (E.g button) and then verifies the control in object tree, within few seconds, the object tree refreshes and all controls disappear.

Alternatively, if I resize the UWP application (i.e) exit the full screen mode, then the object tree holds all the controls/objects properly.

So everytime, when I have to spy an object, I should exit the full screen mode and then spy or else the object tree not holding/retaining the objects.

Any suggestions on this issue will be really helpful