Just installed Okami with a secondary SD card formatted to fat32. It's a slower one, so it took a while, but it worked like a charm, and even played correctly. Wish me luck, as I'm formatting my main 128GB SD card to fat32 and hoping that Hyrule Warriors and a few others install correctly on it. I'll report back later.
PS: Already backed up all my saves with Checkpoint and put them on my PC just in case.
PS: Already backed up all my saves with Checkpoint and put them on my PC just in case.