Guided access is unavailable when multiple apps are open

IOS 26.0.1

Iphone 17 Pro

Unable to use Guided Access.

Error: Guided access unavailable when multiple apps are open.

I already tried:

Closing all the Apps and opening only just one Apps

Issue is happening with all Apps

Turned off Guided access and turned it back on from setting.

Note: Restarting the iphone fix the issue but this is very annoying to restart all the time.

There is no specific pattern of when the issue will occur. It occurs all of sudden without any reason.

Is anyone else facing similar issue