Hey Luuma, I found 2 interesting bugs. The first bug is In Slateport. If you don't let the Name Rater rate your pokemon's name, he/she will challenge you to a battle as a swimmer girl. Once you beat him/her you can still change your pokemon's name, but if you decline you will get the trainer defeat quote. The second bug seems to be with repels. Once my repel ran out, it wouldn't let me use another one. It says that the previous repel is still in effect however, that isn't the case. Even if I save and turn off the game, it still won't let me use a new repel. Thankfully, none of these bugs are game breaking and I'm really enjoying nuzlocking through this game.
Edit:
I found another bug. If you pick up the safety specs in mauville and look at the description, the game will freeze. Also the repel glitch seemed to fix after I went into meteor falls. I have no clue why it fixed it's self though.