I click on "Amend (change) 2018 return" and none at all happens. How can I make it work?

[nets_key]

Nothing at all happens so there is nothing to detail

[DoninGA]

Close the window for the TurboTax online account.  Clear cache and cookies on your web browser.  Close your web browser.  Sign back onto your TurboTax account - https://myturbotax.intuit.com/

Scroll down to the bottom of the screen and on the section Your tax returns & documents click on Show.  Click on the 2018 and Click on Amend (change) return

What happens after you click on Amend (change) return?

[Critter-3]

The 2018 amendment program needs to be downloaded and installed ... see if the installation file is hiding under the open window.