Make sure you copied the luma folder from the ROM hack's install folder directly to the root of your 3DS SD card.Make sure the option "enable game patching" is enabled in your Luma3DS configuration."HELP! When using the Drag & Drop pack, the game boots as normal Ultra Sun / Ultra Moon!"
I'd recommend running a System Update and making sure to also update and clear the configurations for Luma3DS before doing the system format. This user recommends formatting the system, which worked for him. As a last resort, it seems some CFW installations are having trouble with Ultra SM themselves.Make sure any code.bin patches you're using alongside Supernova Sun / Penumbra Moon are for the latest version of Sun or Moon.
A code patch for v1.0 of Ultra Sun or Ultra Moon can cause a freeze on startup or a crash dump, depending on which Luma version you're using. Remove any code.bin or code.ips patches from your Sun/Moon Title ID folder, then try again.Make sure you have the latest Ultra Sun / Ultra Moon update installed.Make sure your 3DS firmware is on version 11.3 or greater (this is a requirement to run Pokémon Ultra Sun & Ultra Moon).It's possible Luma3DS's "hourly" builds could break something important for the LayeredFS feature. Update your Luma3DS install to the latest stable version and make sure "Enable Game Patching" is enabled.Plug your SD into your computer instead of using FTP or MicroSD Management for best results. Try deleting the files from SD:/luma/titles and re-copying them over to the SD.Make sure you have properly removed any SaltySD-based hacks from your 3DS SD card as detailed at the top of this post."HELP! I get a black screen or crash dump error when I click Ultra Sun / Ultra Moon when using the Drag & Drop install method!" You can now delete your dumped ROM and your Extracted_ROM folder.Booting Ultra Sun or Ultra Moon should load Supernova Sun or Penumbra Moon with randomized wild encounters.For reference, the Title IDs for Ultra Sun and Ultra Moon are 00040000001B500000001B5100 respectively. If there is no "8" folder inside romfs/a/0, create one. Once you've randomized your Wild Encounters, copy /Extracted_ROM/romfs/a/0/8/2 and /Extracted_ROM/romfs/a/0/8/3 to the /luma/titles/16DIGITTITLEID/romfs/a/0/8 folder on your SD card.When you reach the part where you can randomize your wild encounters, say Yes and use PK3DS to randomize them. Follow the included instructions for building a CIA/3DS file.Follow all instructions included with the Drag & Drop.
Pokémon Supernova Sun and Penumbra Moon are mods for Pokémon Ultra Sun and Ultra Moon.