Scene Activator (Virtual Devices) Problem

Hi all.

I set up and captured multiple scenes and they had worked well with virtual switches.

Since last week, I can't activate all my scenes by using scene activators (virtual devices); but I can still turn on the scene by clicking Apps-> My Scene -> Activate Scene.

Now all my scene related virtual devices are not working, so my Physical Remote, Google Home and Rule Machine can't work with Hubitat at all.

I tried to google for the solution but still no luck. I would appreciate any ideas...

Thanks.

Problem resolved by restoring Hubitat's auto backup.