Try this trick to print your return:
1) Login to your TurboTax account.
2) Select Show on your Tax Home screen, then Your tax returns and documents.
3) Make sure the current tax year is highlighted, then select Add a state.
(You won't actually add a state, but this trick should allow you access to your return to save and print).
The system is in transition from 2018 to 2019, so for now you can only print out the pages that would be necessary for filing a return by mail. You cannot get to the worksheets, etc. until the change is complete, which will be sometime in December.
Funny isn't it ... the actual filed return is only 4 pages however the larger PDF with all the excessive worksheets can but up to 200 more pages ... sure makes it seem like the program did a lot of work doesn't it.
Access to prior year returns
You can get a free transcript from the IRS:
How do I get a copy of a return I filed using online TurboTax?
How do I get a copy of a return I prepared using desktop TurboTax?
Note: Every year, before mid-October, print a copy of your current year tax return and save it as a tax file and pdf, too. That way you will have it when you need it for school, a loan, next year’s tax return, etc. without going through a lot of aggravation (and expense) to get it.