I've tried running the GBC version on my 3DS XL using TWiLight Menu++. After taking a few steps after the first puzzle, this happened:
I can't reproduce it upon restarting though. Thought you might wanted to know about this nonetheless
Thanks so much for letting us know! If it didn't happen again, that may have been a random emulator or hardware error, which can just happen sometimes. I hope the game is running smoothly for you now. Thanks for playing! 😄