Game freezes when selecting a character

[Gamedan85]

My first post! :D

I recently added a lot of things- psa hacks such as complete rosalina, lloyd and mewtwo- sound hacks such as lloyd announcer call (with fix), mewtwo announcer/attacks sounds, and I added some more portraits to the CSS, along with custom battle icons and stock icons.

I added these all at one time and then went to test them out.
It makes it to the character selection screen, so I think the file size of common5_en.pac is okay, but when I click on the character, right before it says the announcer call for ANY character, the game freezes.

I use BionicSonic's modlauncher for Riivolution. I am going to continue modifying and testing right now, and hopefully I will eventually find the problem. I'm posting here in case that doesn't happen. I've been brawl hacking for years, and this case has never happened to me.

[Sky Grounder]

Try to track down which file freezes by taking out one or more hack at a time. I suggest starting with the brsar containing the SFX, and if that doesn't work, the CSS, and so on.

[Gamedan85]

Thank you. I found out that it was the Mewtwo SFX that I added- the files I used on the smashbros brsar were .rwsd files, which I think don't work.
I'm surprised how fast that took. Thanks for responding.