Hello, I always e-file my taxes through. I got married last year, so I added my husband to my Turbo Tax account and we filed jointly online. However, I forgot to update my address on the site. Almost as soon as I clicked the button to file, I realized that my old address, from another state, was on the return. Will this cause a major problem? What should I do about this, or is it a big deal? Thanks!

You should be ok direct deposit is going by your bank info. You might wait till after you get the deposit then call the IRS to report the incorrect address.
Some undelivered refunds can occur as taxpayers provide an incorrect address when they mail their return, paper-filing ,not E-filing. This often is as simple as transposed numbers or the use of Avenue instead of Street.