After latest updated application acts weird

  • After last update Vivaldi became very unstable, periodically interface starts acting weird. For example: I don't see text pointer in text fields, address bar etc, all text selections are grey not blue. All menu items do nothing, but hotkeys are working fine. Restart helps but only for a couple hours. Then it starts again.

    It look like an application not in focus, everything is greyed out etc. All other applications work fine.

    OSX El Capitan 10.11.6


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