It seems many are having Miitomo photo issues. IF YOU ARE LINKED to a Nintendo Network Account, delete/reinstall seems to fix this issue. WARNING: DO NOT DO THIS IF YOU ARE NOT LINKED, or you will LOSE EVERYTHING. From what I can gather, this may have something to do with the Nintendo Network maintenance, as my network miiverse was wonky too there for a while. (I thought maybe I had gotten banned there for a minute, lol).
Initially, I did have an issue trying to reinstall (freak [...]