I'm posting my problem here because I have no idea what the cause of my issue is.
So I'm using Brawlex and have replaced costumes for the trainer and his pokemon. Then I made my own CSPs, BPs, and RSP and put them in the proper files. Y'know the Inface and MenSelchrFace Junk. Then I opened the Fighter configs in the config utility to allow the game to load the costumes. Then I opened the CSSlots of the Pokemon trainer, I think this may be where I messed up, using CSSlots 1B, 1C, 1D, and 1E respectively. Edited it to the order of my liking and then tried to load up brawl.
However I noticed something was up right away it took longer for Gecko to load the codes and game than usual and when I tried to enter the CSS it gave me the BEEP of death. After that I assumed I did something wrong so I looked into everything and checked everything imaginable. I made sure the sc_selcharacter was under the size limit, made sure the compression was right, checked the CSSlots but nothing worked. I then tried a backup sc_selcharacter pac I had which I did not replace the PKMN trainers cosmetics and it worked! Because of this I came to the conclusion that replacing the stock PKMN trainers CSPs freeze my game. To test it, I used others brawl ex packs that had different pictures for the trainer and it didn't work.
So my question is if I did anything wrong in process which is causing this, or is there a specific issue with the pokemon trainer with Brawlex and can I fix it.
I know people usually don't look at these but if anyone could tell me how to fix this it would be greatly appreciated because I'm seriously stumped!
P.S. I'm using a 1gb SD card, I'm not sure if this has anything to do with the problem.
Edit: It's caused by me replacing Ivysaur's and Squirtle's CSPs, I still don't know why, but now I know the real problem.