One of my colleagues is running FMP 13 on a Windows machine. He is trying to drag-and-drop a PDF into a container field, however it asks him to Download the file (Open/Save Dialogue). He has been able to preview the PDF in the container field before. It seems like the issue happened overnight.
I did make a PDF on my Mac and was able to drag-drop and preview it in the container field so I'm not able to replicate the issue. Would this be something with his installation of Filemaker? or possibly his Adobe Acrobat?