Menu option [Edit] [Link...] doesn't always generate a link and, when it does, it isn't always the right one

I’ve tried adding links to a page of links using the menu option [Edit] [Link…], copying and pasting the link from my browser into the dialog box and selecting “No prefix”. When I do so, sometimes no text is added, sometimes the link appears in blue but doesn’t appear to work and sometimes the text in blue is different from the underlying link which appears to take me to the web page for the previous link (the one that didn’t work) as shown below.

Scrivener Version: - 06 Oct 2016
Windows 10, 64-bit