iTunes podcast image updated half way

Hello,

I am having problems with the podcast logo in iTunes. I changed the logo after a few episodes and now it will not update in the preview links and itunes search directory. However - when I play individual episodes inside iTunes, I can see the updated logo.

Link in itunes with the wrong logo: https://itunes.apple.com/si/podcast/drzavljan-d/id969097443?mt=2

Link to RSS feed with the correct logo: http://www.fahrenheit77.net/category/drzavljan-d/feed/

It's been months since I've updated it and yet still no change. Please help and thank you!