Re: When I go to print an Estimate, and hit "Print and Preview" my preview page no loger appears;...
Thanks for posting in the Community, @fourcrickets. I'm here to help printing estimates.
There are multiple things that can cause unexpected behavior when printing, such as an issue with Adobe Reader. The following article is a general guide for troubleshooting printing in QuickBooks Online (QBO): Test sequence for PDF printing issues. I'd recommend starting here as it's a good place to begin when encountering printing issues.
As always, I'm a post away if I can be of further assistance. Hope you have a good weekend.