Have you checked that that rom has no release intro or something? I thought it worked for other people.Hey I've had some experience with GBA Rom hacking, but I'm kinda new to NDS Homebrew.
Anyway, I tried the Commit a61e70e version of this emulator out, using the tutorial on the /wiki/GBARunner2 page. When I started it up with a clean Pokemon Ruby (E) Rom and the Bios loaded, it was stuck in a repeat of the GBA Bios/startup screen. I also tried this with a SRAM patched Fire Red Rom, same effect. I've also tried using other GBA emulators here, but the Gbaemu4DS came up with "The save file has been deleted..." after trying to load previous saves.
Also, I am using the R4 SDHC 2016 with the 2018 kernel.
Is there any way anyone here can help me? I've been trying to get ANY Pokemon GBA game to work on my DS Lite for like a week now
Edit: Also, is there any support for goomba emulator converted GB/C Roms yet? (Don't question why I want to do this, I know about GBC emulators)
Afaik it should work. You should just give it a try.