Hello Doug,
Hauptwerk always saves it settings when you exit. However, if the PC loses power unexpectedly, or crashes, or if a driver crashes and causes Hauptwerk to crash, then any settings changes might not be saved. Drive corruption, or RAM corruption (e.g. due to an erratic RAM board fault) could also cause loss or corruption of settings. I would suggest:
- Make sure the PC is always shut down properly/fully before cutting power to it.
- Make sure that you have the latest version of your PC motherboard's BIOS installed, checking on the manufacturers' website.
- Test the PC's RAM for errors: https://technet.microsoft.com/en-us/library/ff700221.aspx
- Scan the PC's drive/SSD for errors: https://support.microsoft.com/en-gb/kb/2641432
- Make sure that your PC's clock is correct and remains so, since an incorrect clock can cause Hauptwerk to think that caches need to be regenerated (as a result of timestamp comparisons). A failed/failing PC motherboard battery is the usual cause of caches regenerating unexpectedly, since it will make the PC's clock misbehave.
If that doesn't solve it (or identify the problem), the next time that it happens, please use 'Help | Create a diagnostic file' and send it to us ( http://www.hauptwerk.com/forms/support/ ). Hopefully that will give a clue to what might be going wrong.