[pkscout]

That log shows only that Artist Slideshow has been installed. There is no indication that it is ever activated. You have to playing music, have your skin on the music visualization screen, and have a skin that supports AS.

I don't know what to say. I looked at the add-on and it is enabled. In this case I click on Run (I never had to do that before). When I play music the background is black. I bring up the visualization screen and the Artist slideshow add-on is enabled. If I disable AS in that screen, exit back to the song listing, then return to the visualization window and re-enable AS everything works, until I exit KODI. Then I have to go through this whole procedure again.

I'll send another log file. I also have a screen capture video, but that's a bit larger.

Here's the new logfile: https://paste.ubuntu.com/23796850

I can see AS setting the artwork folder, so that is working properly. It looks like you're using the Transparency skin. Given AS is setting the artwork folder the next step would be for you to find the support thread for Transparency as ask there.