After upgrading to the Windows 10 Spring Creators Update, this thing started happening. Everytime I open a jump list the leftmost pinned icon has a white border. It doesn't matter which app it is, it only effects the pinned icon next to the search icon. Is there any way to get rid of this? It's kind of annoying to see it flashing every time.
Screenshot taken just a few frames before the Jump List animation starts.
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