So far I have tried the following.
- Resetting my internet connection, both at the router and my deleting and retyping my Internet details into the 2DS.
- Manually deleted the Universal updater folder in the 3ds to let the updater try to fix it.
-Reinstall universal updater using a .cia through FBI.
-Switching store fronts with universal updater, then switching back to the default.
- Uninstalling universal updater from system data management then reinstalling also didn't work
- Switching back to an older SD card that has my back ups does fix the issue, but if there's a solution that doesn't require redownloading all my games, it would be lovely, as my backup is just that, a fresh CFW install SD card (only 4gb too)
- Gonna try another SD card I guess, will update here eventually, just strange as I've been playing games/saving no issues, no obvious corruption on the SD when I view it on PC and it also passed h2testw fine, oh well, the 4gb working fine was a smoking gun, must be the SD.
Any and all help would be appreciated.