I have been having issues also Jeff. I've uploaded pics hundreds of times.Using same camera and same everything. Sometimes it will let me do one, but not two. I have made no changes at my end.
I just tried your process and it worked and seemed to be a quicker process than what I have been have been using all my TN membership.
Went back to my process and it didn't work. Started over to jot down my steps and this time it worked, but if it is still like it was, it probably wouldn't let me upload another pic.
The steps I have been taking are as follows...
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UPLOAD... and it does nothing. Thumbnail is supposed to appear at the bottom. Guess I may have to learn your way even though I am an old dog that don't want to learn new tricks. My wife says "it's good for me".
Same problem can't upload but one pic per post.
The insert image doesn't work like before.
Throws the image to the bottom of the post.
Windows 10 Chrome.