I have SW 11.0.0, build 4193
When in Guest mode, selecting Streaming Channels/ Channel Store shows the category list, but no icons appear in the right hand panel. I can however Search Channels by name and install from list presented. When I’m not in Guest mode the icons appear properly in the Channel store!
I have reset Roku multiple times - same behavior.
Icons for programs or channels show up fine in other top level menu options, like Featured Free, Live TV, What to Watch.