Can't toggle post metadata on (except author)

I logged in :)

The issue is caused by the date format setting which can be found in settings > General.

You are using an empty custom Date format that returns nothing for the date.
https://www.screencast.com/t/4eQINonCatD

If you choose any of the date formats, the issue should be fixed.

Let me know!

Hey, Ying!

Thanks for helping me solve the issue. It works now on both themes, it seems!
I'll see how to show the last modified date so it substitutes the published date.

Thank you for your patience and kind guidance!

Wishing you a fine day/evening!

You are welcome!

To show the updated date instead of the published date, try this solution:
https://docs.generatepress.com/article/show-the-updated-post-date/

Worked like a charm, Ying!

Much thanks for helping out with this one too. You're fantastic.

Have a lovely week and best regards!
Alexander

Glad to hear that :P

Thanks!