How to get screensaver timeout to stop automatically switching to sleep after 20 minutes when I keep changing it back to never

[Windows 11]

This is my work computer, Windows 11 software all up to date. My screen used to never sleep, then within the last two weeks the settings have changed to sleep after 20 minutes. Every time I go in and change it back to "Never" it will automatically change back to 20 mins and my computer will go into sleep mode. This is extremely frustrating as I work a remote job and I don't want my computer turning off when I leave my desk. I've tried the advice on the other query on this topic but nothing is working the settings keep changing on their own. I've attached a picture of what my settings look like

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