UPDATE TO MY PREVIOUS POST:
It seems that this problem is larger than I first realized. I just discovered that even though I have made no changes to my settings in the SNAP Pro plugin, the image part of my posts is no longer being auto-posted on Blogger either. The Blogger site is only showing the text part of each of my posts, even for older posts, where the image once showed.
As noted earlier, on the Google+ site, my WP blogs are now not even showing at all. Only links to my Blogger posts are showing, but WITHOUT images.
Being as these two social networks are owned by the same people, I am wondering if they are in the middle of fiddling around with their API code, and that is what may have broken things on BOTH sites. But this is just a guess on my part.
As I said, I have made no changes in either my Blogger or Google+ account settings in my SNAP Pro plugin.