It's pretty weird. I hadn't any problems with other system and, within the switch, only with some games.
It download the square image but not the other (physical). Some games work and other not. Pretty annoying.
The first problem I see is that everyone is uploading a wrong Box Front cover (square). Why?
For example: https://gamesdb.launchbox-app.com/games/images/141741-romancing-saga-3
Main box front (Square)
While the correct one should be: Real box front.
A lot of games have only the fake square box front image instead the real cover.
The second problem is I cannot scrape several Switch images. The example I said before is one of them.
I set my region to "North America" and scrape the images but Launchbox NEVER download the real box front cover art. Only the square one.