Up arrow key not working

[Robin Cook]

Since upgrading the up arrow key has not been working on my system and I
am unable to figure out how to fix it.   When I press the up arrow key
it causes the gnome snapshot app to open.

Attached is the output from xev.   

I started xev then moved the mouse over the close button of the xev
window the pressed the up arrow key, then clicked on the close button of
the window.
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