Homebrew compatibility changes with every firmware update to Wood I've discovered, or at least it was fairly sporadic with earlier Wood firmwares. For example, Moonshell would work fine one update, I wouldn't be able to use any of the .nds files to boot it the next. Not quite sure why homebrew compatibility is so spotty though. Some people live on homebrew.
Try using an older Wood version (v1.26) and see how that works. I would try it myself, but I don't have SNEmulDS on my MicroSD right now since it just sort of takes up space for me when it is on there. There is no more need for manual DLDI patching though on any flash cart beyond the Pass Me era.