Post Expirator – Auto Enabled – Disabled – Not Working

I’ve noticed an issue with pages going to draft when edited.

It turns out it’s due to Enable Post Expiration being ticked, despite being disabled in the settings.

I’ve managed to replicate the issue with the default Twenty-Twenty-One theme and all other plugins disabled.

Please see the link below for a demo…
https://www.dropbox.com/s/ac9ltcglsxegr61/Post%20Expirator%20-%20Bug%20Replication.mp4?dl=0