Just quick looks the log, I cannot find very valuable info yet. I will go into detail tomorrow.
However, it could be helpful if you can help me with these questions:
1. Do you try to drag and drop some folders? From log, it looks some drag/drop behaviour causes the hanging..
When it hangs, are you editing any particular document?
Do you use add many external folder to TextNut?
Can you try: select another document (if it always hangs on a doc), then restart TextNut. Do nothing and see if it is still hang?
Sorry for the inconvenience.