Screenshot Edit Overlay does not go away in iPadOS 16.6 guided access mode.
(This happens since less than 24 hours ago)
In guided access mode, left-corner swipe and right-corner swipe actions are still available. While previously triggering a screenshot in guided access mode led to the editor showing up for about 10 seconds and automatically disappearing itself (without leaving the main process), now the editor keeps staying on top no matter what actions are taken. The problem can only be solved via a hard reboot.
Those buttons in the editor are not active even after leaving guided access mode when stucking on that screen.
As we can still get to the home page via the assistance touch that the sound from the main process disappears (the editor still covers up the screen), it is quite certain that the screenshot editor is an overlay. There is also a weird screen composition when trying to edit the guided access settings when the device is stuck on that editor overlay (the current screen (smaller) shows on top of that editor)
That seems to be a bug, of either allowing taking screenshots in guided access or not automatically closing the screenshot editor in guided access mode.