m1 iMac apps unresponsive and unable to switch
I've just got a new M1 iMac and in the main am very pleased with it. However, the other day several apps became unresponsive, I could not 'select' them by clicking on their windows, or their icons in the Dock. Only a system restart fixed the issues yet on a force quit in the finder none of them showed as unresponsive and a force quit did not work either. This was on macOS 11.3. I've since updated to 11.4 and today the same thing happened with iAWriter. I had it in a separate Space so could not return to the window, could not save my work and the dock became unresponsive. I had to restart the system and lost my work. Any idea what the issue is?