I assume you have completed the mom's Federal return. So with her return open in TurboTax, go to the top menubar, click on ONLINE menu, then in the dropdown choose "Download state" (even though you already have.)
That will bring up a screen that has a selection box on the left. Ignore that stuff on the left of the popup. Leave it blank (it may say "select" but do not). In other words, don't choose a state.
Instead, on the right side of that popup screen there should be an enclosed box showing your GA state selection. Put a checkmark for GA then click the Download button. That doesn't really download it again, but it attaches the GA program to your mom's return.
Please report back on that.