time.Sleep go routine in console
I've had this issue a couple of times, it is usually preceded by a bunch of rejected shares due to low difficulty.

I've tried undoing overclocks etc. to make sure its not an instability thing.

The output doesn't actually write to the log files so I've taken a screenshot.

After this the low difficulty share rejections drop away (with and without overclock).

If you leave it running for a while it will go back to mining as expected.

I had a look around but I couldn't find anything. It may be unrelated but shortly before the rejections I got an error regarding 'memclrNoHeapPointers' (again I couldn't find much about this).

Any help appreciated. I can provide more info if required. Logs aren't giving much away.

![image](https://user-images.githubusercontent.com/9094952/103437921-023d3a00-4c25-11eb-966e-43402c21bf98.png)
