No ready check? Penalty for declining too many games...

I queue for a nexus Blitz game and then I wait. Then suddenly I get a notice stating I declined the ready check but THERE WAS NONE.... I queued again and same thing... I see the queue-timer working searching for a match and then suddenly a warning about me declining too many games... But there is no dialog for me to accept? Why? Now I got blocked from the queue. Apparently a reboot fixed it. I think it's related to having too many monitors or something.
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