Fascinating. I didn't think of importing to new project because I am a new Logic user and I was pretty sure I was missing a step somewhere. I figured I needed to stick with it to learn something about the program (e.g., I learned through trouble shooting this that in preferences you can assign marquee behavior to the pointer).
But yes, might be time for a work-around, and thanks for the suggestion. I'll attempt to import only the Take folder to a new project, make the comp edit there, bounce it, and re-import it to the original project. Then I'll try a comp edit in some other project as a test of the general availability of that function in Logic. I'll be a bit disappointed if it doesn't work.
Logic Pro 9.1.7 32 bit, OS 10.6.8, iMac, 3.2GHz-4 GB RAM, MOTU 828 mk3 Hybrid