Using NetDrive3 3.8.925 on Windows 10
My Explorer windows are freezing and all drives are inaccessible for the entire duration of files being uploaded from the cache to Google Drive. As I am often uploading files of many gigabytes, this can last anywere from a few minutes to an hour.
Also, I set up my own Google Drive API. (You need to verify your domain and your app, by the way.) However, from my API console, I do not see NetDrive making any requests.