Since original purchase of game on Switch several months, the UI for the market does not load. Rather than the icons loading, the description of the icons load. Additionally, previews load extremely slowly or not at all. (The extreme slow load or not loading at all have been previously reported by others, but it looks like those tickets were closed without a solution.) Finally, I purchased the Stars Wars mashup for my son yesterday (June 20, 2022). While the world loads and preview for the skins load, the interface for selecting the skin as the active skin does not load. My kid just wants to explore Tatooine dressed up as the Mandalorian! 

Slow market loading is reproducible on PS4; but I've not purchased the Star Wars mashup there so I don't if the selecting problem reproduces. Image of the UI and selection box not loading attached. 

It is not a local network problem.