Yes, while working with small files, the Copywhiz copy progress dialog disappears very quickly.
However, you can generate a log file for every copying process and detect whether the files were successfully copied or not.
Watch a short video to know how this is done:
To do so, Run Copywhiz , click on Advanced Settings and select "General Tab'. Select Show log 'Always' from the drop-down list as shown below. The log file will open automatically once the copy process is over.