Unable to save PDF file even if the URL points directly to it
I imported (from Firefox 74 Citavi Picker, latest version from add-on store) the article at https://journals.sagepub.com/doi/pdf/10.1177/1747493017743796 to my Citavi 6 (local) project and some time after I realized it neither saved nor had the option to locally save the file. It shows a "save file" button, but not Citavi's. It's an Acrobat Reader plugin (apparently running inside a browser window inside Citavi; please, oh please, tell me this is not Internet Explorer or anything like it that I see there), whose button opens a save file dialog to choose a folder anywhere in my computer, it's not the expected "save a copy in the project".
This is not a general bug, meaning that it does not occur in every link to a PDF file (it does not occur with http://blogs.gonzaga.edu/gulawreview/files/2011/02/PalchakLeung.pdf, for instance). But it is a permanent bug, in the sense that it occurs whenever a link is structured in the same way is this one is, which means Citavi is not properly interpreting this kind of PDF link.
Edit: I downloaded the PDF file from https://journals.sagepub.com/doi/pdf/10.1177/1747493017743796 in Firefox to manually add it to Citavi. It was named 1747493017743796.pdf, so I quickly searched for 1747493017743796 in order to drag it and drop it in Citavi's window, only to discover a file named 1747493017743796.pdf at "C:\Users\Alain\AppData\Local\Microsoft\Windows\INetCache\IE\I36LECXA". Are you really using Internet Explorer inside Citavi? In 2020?