Texture has colour noise on it

[system]

Hey,
New here so please forgive if this is a newbie question. I have looked through these forums and have been unable to find anything.

I've polypainted my model, but when I go try to make this into a texture I get large colour noise over my texture. I've tried different map sizes (this just changes the res on the noise). I don't know what else it could be. Any help or suggestions would be greatly appreciated

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