My InDesign for the last two or three updates stalls when I copy and paste into it from another program. It does the same thing when I copy and paste inside the program such as copying an element from one page to another. It also stalls when I do the alt-click duplicate routine. The stall also occurs when I place an AI or PSD files.
This behaviour is not limited to one file, it is evident in all files.
I don't believe the issue is in my machine because I routinely work with PSD file as up to over 1 Gig in size with no problems.