So ive been playing through myself after helping my friend, and some bugs I noticed:
-For some reason, some of the music changes dont function right. The Rival plays a random sound effect instead of having the music start, and Oak at the beginning has the music cut out strangely until you get into the lab. Also the Mystia in Pewter outright kills the music. I don't know if it has to do with the patch or the base rom but it happens.
-This person in the 2nd gym
-CIchirin has brown spots from what I assume is being over Spinda. I don't know if this is fixable though.
-The battles against the gym leaders play a song that isn't First Suite from Far East