Yeah, already got that, cheers though. I have no idea what I'm doing wrong with this. The example forwarder worked perfect, but trying to build my own for SMT Strange Journey keeps resulting in the same thing, even using a TID from the whitelist. Select the game after installing the CIA, instantly goes to black screen with the "An error has occurred. Hold down the power button blah blah blah"Download NUS Downloader, find dsikey.bin around the internet, and download it to the same folder as NUS Downloader.
I copy everything as instructed, put the TID from the whitelist at 0x230 in reverse, overwriting the DRWF that's already there. I'm basically following the video + written instructions to a T, and it turns out the same every time. Guess I'll try a few more different TID's before calling it a night.