Display timeout settings not working

Display timeout settings not working

Hi,
I'm in the process of deploying Samsung Galaxy Tab A devices but noticed that the display timeout settings are ignored unless I allow the Modify default device settings option.
The tablets are all running Android v9.

I found what appears to be a similar post https://pitstop.manageengine.com/portal/community/topic/display-timeout-in-kiosk-mode

Is this a known problem?
Bob
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