LyX View pdflatex does not display automatically in Acrobat Pro DC

I had this problem earlier after updating my Acrobat programs. After a great deal of fruitless searching, I found reference to a solution buried on this page:

http://www.lyx.org/trac/ticket/9512

Look right towards the end for comment 19 and there is a reference to replacing a file called pdfview.exe on your system with a new version from the link given there. I have done so, and all now works fine.

You should find the existing file in your Lyx installation directories under the 'bin' folder.

Appears that Adobe has changed some parameters on its software which breaks the ability of DC to produce the output.