Yes, I have installed the 1.14 versions of forge in the past with all of the correct libraries. This is a bug with forge that needs to be fixed by making it so the installer doesn't scan the ENTIRE versions directory since that's what I can only assume is happening right now. It knows that the libraries are there, it just doesn't know that they're in the correct directories, causing it to fail unless you remove the libraries manually (which I don't know how to do at the time of writing this, I would assume it's by removing the version-name.jar file from the 1.14 directories).
You'll have to be more specific about anything "changing" since I had installed the 1.14 versions of forge.
-Sauce