Some years ago, I liked a few posts. Now I want to un-like them.
When I'm on http://www.tumblr.com/likes, I can click at the red heart icon and it changes to grey. But as soon as I reload the page, the heart icon is active (= the post is liked) again.
When I visit this liked posting directly and click at the heart icon there, I get a pop-up with the following error:
"Sorry, we seem to be having technical trouble. Please try again later."
I get this error for more than a week, now. So I fear trying it later won't help much.
Both ways work perfectly fine for newer posts I liked. Also unliking some even older posts worked, too. So I don't know if it is really connected to the liking date.