Topic: Very weird launch issue

Hi guys sorry idk if you do problems but my 3ds is having a very strange problem. When I launch Pokemon X without an SD it obviously says I need an SD. I went to the shop and bought a 32gb sandisk ultra SDHC. It inserts and says it’s there but when I launch a fully updated Pokemon X (it asked me to update before launching which I did) it does the 3ds logo before going to a black screen. Have left it for 10+ mins to make sure it wasn’t just loading. I have also put in super smash bros and had it do an update. Launching smash bros took a few seconds on the same black screen but did launch. The kicker is when I take the SD out Pokemon X launches no problem and says it needs an SD. Have I mucked up with the SD card type? If so how does smash bros launch with the SD in. Any help is great thanks can share photos/videos if needed if anyone’s interested in helping.