Can no longer open References in pdf App using the Tools menu
I've run into a small problem. Until recently, when working with a reference, I've been able to open the reference in my pdf editor software using one of the Tools in the reference viewer. I am using Nitro Pro as my pdf editor and it has worked fine with Citavi until recently. However, now when I try to open the reference, a Windows File Explorer box appears asking me instead to save the file.
Any idea why this is occurring and, more importantly, how I can fix it?