Thanks for your reply @Rea_M .  But I don't think I explained my issue.   I have customized this report every time I used it and saved customizations for different vendors.  However, today when I pulled it up, the list of Vendors was not available in the drop down box.  Just the "Specified" etc choices (so no "Ariel" like in your screen shot).

I can try a different browser, but I have been using QBO like this for 3 years with no problem.  A screen shot of the problem is below.