We just finished TDP 4.1 so we have some more time. I have reviewed QAT-8972, which is the current open task for this issue, and have assigned to Aleksey. He will start work on this mid-next week. In the meantime I would like to capture fresh logs. We did find an error that when you open the automation script it will delete the last automation log. This is why you couldn't find the logs before So the next time you get the hang, go to app data dir, dont open the automation window and get me the following logs.
C:\Users\%userprofile%\AppData\Roaming\Quest Software\Toad Data Point 4.0\ExecutionTrace.log
C:\Users\%userprofile%\AppData\Roaming\Quest Software\Toad Data Point 4.0\Automation\automation*.log (Grab any that have hung)
C:\Users\%userprofile%\AppData\Roaming\Quest Software\Toad Data Point 4.0\ImportExport\ exportlog_TMPxxx.log
NOTE: It would also be helpful is you have verbose logging turned on