Earlier this week Nintendo released a 3DS system update and, in Europe and Japan, a StreetPass Mii Plaza update that freshened up the user interface and added four new games as paid DLC. The only trouble was that, for quite a lot of people, the new shop just crashed the app.
The Twittersphere picked up on a theory, which seemed feasible, that the issue was caused by having a large number of Mii characters in the plaza. Nintendo promised a fix and it's now delivered, with a fresh update now available for the app that resolves the issue. We tested this on one of our systems that wasn't working and, as you can see in the image, the DLC bunny is now in the game.
It's worth noting that if you have pending StreetPass hits the update won't automatically kick in, so to get it you should clear out the hits you have, quit the app and then relaunch it — you update by launching the StreetPass Plaza, this isn't a full system update. You'll then be prompted to download the update, which just takes a couple of minutes.
It seems to be resolving the issue for various 3DS owners, so let us know how you're getting on with it in the comments below.
Thanks to Kobe for the tip.