private contributions not showing up

Even though I have selected “Include private contributions on my profile”, my private contributions are not getting reflected in public. Can anyone please help me with this?

Assuming your profile on matches your username here, anonymized private activity does appear visible on the profile’s activity page, and when you click on the relevant days in the heatmap visualization.

How are you validating its appearance/non-appearance? When you’re logged in, the contributions will appear normal. They are only private to others (such as anonymous visits).