Issue:
The Alt + Tab keys stop working intermittently - I press these keys and nothing happens at all.
This issue started after upgrading to Beta 19 from the previous Beta.

Version:
DisplayFusion Pro v10.0 Beta 19
Windows 10 (1803) (17134)

Workaround:
To make it work again, it is enough to:
1) Open "DisplayFusion Settings"
2) From the left, click the Alt+Tab page
3) At the bottom click "Apply" and "OK"

Attachements:
1) DisplayFusionDebugInfo.zip
Clicked the "Troubleshooting" page > "Export Info to File"
2) DisplayFusion Backup (2023-Jan-23, v9.9.99.119-BETA, SERGEIS-7490).reg
Clicked the "Options" page > "Export Settings"

I enabled the debug.
When I encounter this issue again, I will attach the Debug Log.
Thanks.