Why would my credit karma account say state taxes deposited when they're not

You can track your return status here. 

It should not show deposited until the state deposits the refund. 

I'm having the same issue with my state refund and i check on mass tax connect and it just says processing. Cant find any other information on it.

If the state website is still showing as processing, it has not been deposited yet.  Please track the exact status of your state return at their specific website.  For more details on this, please see our Help Article.