i have some issues. So I have a N3DS and N3DSXL. The XL no gba vc games work and if I remember it is fat32 64k 9.6CFW. The N3DS 11.7CFW 32Gb which I’m upgrading to 64gb yet only one out of 5 gba vc games work. Now I read online 64k can cause issues for gba vc games. Is this true and what should I set the cluster size to for both my cards please. Upgrading is as simple as copy and paste from one sd to another?