Edge only presents Preview of pdf instead of opening

Hi, new to the forum so forgive newbie mistakes.

I have been using Edge as my default pdf viewer but recently, when I click on the pdf, I only get a preview instead of the pdf opening in Edge.  I have to click the Open icon in IE to force it to open.  To be clear, up until recently, when I clicked on a pdf, it opened in Edge.  I have done nothing to change any settings on my PC.