I got no error message, even upon inspecting (Clicking the checkmark) the pack. Loading the built-in world or attempting to apply the texture pack does nothing.
Edit: I also use the Error Log setting to see if there is anything wrong with any add-ons or external mods (I don’t use external plugins on Switch.) that I use. Upon loading the texture pack loads no error messages, so I’m not sure what it is.
No, unfortunately the newest update/updates do not fix the problem; nor does turning of edu, suggested by @AniMario.