As the title describes, I keep getting a random spinning wheel, but there is no crash/hanging of the system of any sort. I've been getting these for the last two or so years, but only recently it has started occuring much more frequently, prompting me to ask it here.
I have a 4GB early 2015 MacBook Air on MacOS Sierra. The wheel appears randomly and is not application specific. I can still move the wheel using my trackpad, so the system is definitely not hanging. However, once I click the trackpad, it disappears, with no other effect. I probably must mention that when the wheel appears, it appears "on top" of all applications, in the sense, that once I click the trackpad to make it disappear, I'll have to click once again on the application window I was previously working with to interact with it.
I am just curious about this strange behaviour as I haven't found any similar issue discussed anywhere else.