I assume you’re asking the question on the basis of hypocrisy, I.e. “Is it hypocritical to smoke weed while you’re an AA member?”
My take is that no, it wouldn’t be.
People who are in AA are there because they struggle with alcohol addiction and they need community and support around that. And that’s why you’d also be there too. There’s nothing hypocritical about having other vices in your life aside from alcohol if those vices are not the source of your troubles. You can still attend in good faith for the right reasons.