You can just add this link {% unsubscribe %} to the text that says something like “Unsubscribe Here”
I hope this helps and thank you for sharing your question here in the community.
Cheers
Arpit
I did added the unsubscribed link. Seems like a bug of the system and support didn’t reply to me at now that makes me sad...
I solved this issue by changing the font color…I always thought the color was the default black, and it is indeed black, but why can't Klaviyo recognize it? It was not until I changed it to another equally conspicuous color that it was recognized.