We have recently fixed an issue that caused some Likes or Dislikes to not register correctly.
However, if you see profiles you've already pinged, liked or disliked in Discover, you may still be experiencing this bug.
Please make sure you have the latest version of the Feeld app available on the App Store or Google Play, as this may fix the issue.
If you have disliked someone in Discover, but they like your profile, you will still see them in Who Likes You. This is to give you a second chance to connect with profiles that may not have caught your eye during first impressions.