Occassionally I get this blank notification bubble appearing over my notifications. I can’t swipe on it to get it to go away. Does this happen to anyone else? Any idea what might be causing it? (Rebooting removes it.)
No, I have never encountered that problem. 
Never, i’d say it’s a misbehaving application that is not able to render the notification when the push message arrives.
IMO, Alan Dye
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