[mark_dj]

The skin for Krypton updated for me later today, but the submenus (+ playlists) have completely disappeared.

Any idea on how to fix this?

Your main menu stayed the same, but your submenus disappeared? Not sure what you mean about playlists, the only was included with the skin is only used for the music viz album wall background.

That's correct. The bar for the submenus is still there, but they're completely empty. Pressing down to access them doesn't work either. I have rebooted and updated Kodi but that doesn't work either unfortunately.

(I also use some playlists for the submenus so I should've clarified that bit, my apologies.)