Retina MacBook Pro late 2013/10.14.1 Beta (18B45d)/Opera 56/ no extensions enabled. I think this is a recent anomaly. I haven't found any of my other apps to fail to respond to clicking on the buttons when app is in background. I have googled and skimmed through the posts here. Any help much appreciated. Cheers.
Best posts made by sqeeezy
This user hasn't posted anything yet.
Latest posts made by sqeeezy
Opera 56 close/minimise/maximise traffic light buttons unresponsive unless app foremostOpera for Mac