Hello,
Sorry to hear you are having issues. But, unfortunately, Stardock do not share older version installer. Which most probably will not resolve your unstable issue. Would like to suggest to try these steps uninstall Fences, reboot immediately (important), re-download latest version available in your account product download page: https://store.stardock.com/myaccount/products. Install it, reboot immediately again. Retest it and report back.
If the issue still appear, perhaps we can work with you to resolved your issue. Please report back with few more details.
- Windows 11 full version and OS Build number, use Winver.exe to get these number.
- Elaborate more on your "unstable" issue.
Thank you,
Basj,
Stardock Community Assistant.