IPTTV Radio and Artist pictures via Artist slideshow

Hi Kodi fans!
I just installed IPTV SC after the radio plugin is no longer working.
So far it works showing with the radio stations the artist and the title.
 What I am missing is the slideshow of the artists. There is only a black screen. With the radio plugin the artist slideshow worked perfectly. One strange thing appeared: When there was an artist of whom I know that there is no picture on fanart.tv, another artist picture appeared and disappeared with the next title.
Anybody has any idea how to work the artist slideshow?
Thanks
Klaus