It seems that this is not a unique issue and I've found dozens of other folk who have experienced the same type of 'draft overwrite' (through no fault of their own).
The 'draft' post(s) are/were inside the yellow box, yet when the title (via a bug) gets overwritten with the 'Coming soon...' post title, the 'Twin Peaks - Eraserhead - Muholland Drive" post, no longer exists, because it has been overwritten! I never even typed in the 'title' (which you'd expect to have to do, to make a new post!) for the duplicate post, it just appears as a result of the glitch.
Here's a user who had this problem...'two posts with the same name' and the important work gone!

Another here...two posts the same, a duplicate and the important work gone!
So much for Google, being at the cutting edge of tech, they can't even deal with and fix a simple glitch like this!
Hudson (Paxton) sums it up beautifully...
Yes, this is me, officially 'bowing out' of blogging.
I won't be coming back, after this recent disaster and I'm sure (and hope) that you'll understand.
Thanks for all your support and best wishes to everyone.
Oh the irony...I only wrote the following comment (below) a few weeks ago...recalling what happened with my Mulholland Drive post from 2012. The same thing happened there...all my work getting overwritten and I ended up rewriting it from scratch!
Believe me, it was no mean feat rewriting, just look at how long and extensive my Mulholland Drive post is...it was a monumental task, having to get over the disappointment and then rewriting it again and all from scratch! This upcoming Twin Peaks post, was even longer and more extensive than the MD one...that is why I am hurting so much.