The App Store purchase button disappears when another window approaches

Since macOS 15.3.2, we have observed that when another window is moved near the App Store's install button, the button disappears.

We have attached a related video in the Feedback submission here https://feedbackassistant.apple.com/feedback/20444423

Our application overlays a transparent, watermark-window on top of the system window, which causes the install button in the App Store to be hidden when a user attempts to install an application.Could you advise on how to avoid this issue?

The App Store purchase button disappears when another window approaches
 
 
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