EndNote loses PDFs imported via Kopernio
I've been using Kopernio to import citations & PDFs into EndNote, and the citation import works fine. The PDF is downloaded too, into the folder in my downloads, and gets attached automatically - which is excellent! Really like that function.
But then, a few minutes later, especially if I download another citation, the PDF of the first one just... un-attaches itself. Within EndNote.
Which sucks, because one has to go hunting for it through the cryptic filenames in the folder.
Any ideas of what's going on / how can this be fixed? It's a wonderful functionality, but this flaw kills it.