Its a known issue, especially on the Windows side. Try this: Quit both Applications. Now start Illustrator then copy your path. Next, Open After Effects and you should be able to paste.
Friday 05 March, 2010 05:09:10
i can't copy and paste the outline into after effect on a solid layer from illustrator. i copy but the option of paste was grayed-out. i looked at the preferences in Illustrator under file handling and clipboard to make sure that AICB was checked and it was.
can you help me? thanks!