While generating documents you may be presented with the following message:
"Document generation complete. Click to continue."
Click the button that is displayed to continue with the document generation process
Due to a change in Chrome version 68, you may need to enable redirects similar to how you would enable popups. Use the steps below to enable redirects:
Look for the Redirect Warning icon in the address bar of your browser:
Click the icon, select the radio next to the “Always allow pop-ups and redirects from <Salesforce URL>.
Click the Done button