I think there's something wrong with the latest NASA. I tried to install lots of CIAs on an old 3DS XL with 4.4 firmware. None of them showed up on the home menu, so I checked to see if the .db files were there and they were, so I deleted them and made some new ones and had them repaired by the console. I installed four games with DevMenu running on my Gateway card, then today I left the rest of them to install over the network with NASA/Houston. When I came home, the transferring bit at the top of the screen was gone so it looked like it had finished, so I restarted the console, and now there's no games on the home menu at all! The ones I installed with DevMenu are gone. Why is this?
Also, on Houston, every file was successfully sent except for the last one, which just had Sending filesize... sending file... with no 'file successfully sent!' message. I don't think there's anything wrong with this file, because I have installed it on countless consoles before this. My next experiment is going to be installing this last one with DevMenu and then installing some over the network with NASA.
Edit: Never mind, the ones installed with DevMenu did appear. It just took literally 5 minutes. I guess it's a really slow SD card.