Try clearing the system cache, if you have not done so since the hotfix: in the Home menu open System Settings, then select System, Formatting Options, Clear Cache and then the current user.
Note that this will also reset the system language and brightness setting.
I'll check with the Switch programmers if this is a known issue (haven't seen it reported before).
The next update should include changes to some textures, and a change in how they are compressed (new version of a Nintendo SDK).
