Any solutions?

[ThisGuy]

 So when I play with my textures and stuff, without any warning, it will crash (or i suppose thats what's happening) making that BEEEEEEEEP sound.

Is this a thing that happens no matter what or is it something that I didn't do correctly?

[TruePhilosopher]

You'll have to be a little more specific, because I have no idea what could be wrong just by stating, "textures and stuff." 

[ThisGuy]

Well that's about it right now. Only textures. It's all I have on there at the moment. They'll be working fine and and out of nowhere I'll get the 'crashing'. No pattern at all to any of them.

[TruePhilosopher]

No particular textures or characters that it will freeze on?  Or specific stages that you may play a lot?  Or is it Pokemon Trainer issues?

If none of these have you used your sd card a good deal?  If so you may have to back up all your data, format your sd card and then put everything back on.

You may also have a problem with your codes.  If you're using Brawl+, Brawl-, etc. those codes can sometimes have issues with textures, stages or other codes.

[ThisGuy]

I do play Final Destination mostly just because it has become a habit to go straight up when choosing the stage. I don't think that could be the problem because it happens on the way up to choose the stage.

I have noticed that whenever I use a texture (stage and character), it will freeze once I choose the character color or the stage at the stage selection screen. That's when I delete the texture.

And just a few days ago, I transferred everything I had onto a newly formatted SD card.

[DocStrange]

I hate to say it, but this was happening to me and the only thing that worked was formatting my card and redownloading everything.

[ThisGuy]

D: Okay. Scary.

[SmashClash]

D: Okay. Scary.

I could say that to your avatar.

[ThisGuy]

I could say that to your avatar.

It's cool like that.