Hey there first post here. I discovered something rather interesting about the save manager that comes with the new Homebrew starter kit for 11.5.E on my N3DSXL. I noticed my games making the screen glitch out when trying to open the app forcing me to hard reset. And despite a lot of people claiming it's still running in the background, I found this untrue as I tried pressing the A button to backup and see that no backups were made to SD. Then I discovered that with my installed Persona Q it does not do this, and backs up and imports fine.
So I tried a few things and got it working with ALL my games that I own atm. Like say Fire Emblem Fates Limited Edition. First I open Persona Q, then backup save then quit back to homebrew, re-open Save Manager and select Fire Emblem and then opens fine and I can export/import. Trying to quit then freezes the system, so after importing or exporting I just hard switch off the system.
Have tested it with the following games and this method works so far as I can tell:
Carts
Fire Emblem Fates Limited Edition
Fire Emblem Awakening
Xenoblade Chronicles 3D
Monster Hunter Generations (not needed but I though I'd test it anyway)
Bravely Second
Kid Icarus Uprising
Digital
Persona Q (Will need this to back up without hanging on my system)
Azure Striker Gunvolt
Azure Striker Gunvolt 2
Shantae and the Pirate's Curse
Shin Megami Tensei IV
Virtue's Last Reward
Retro City Rampage
Conception 2
One digital game it doesn't seem to work with though on my system is Ace Attorney Dual Destinies. Hope this helps all those having trouble backing up saves from 11.5 upward and sorry if this has already been said before