[whpalmer4]

This is an example of why I'm a big fan of sending documents to the support ninjas — unless you can make a very simple test case that shows the aberrant behavior, it's pretty tough to unambiguously show what is going on in a forum post. The obvious first thing to check would be that you don't have keep duration fixed selected on that task. Doesn't explain the whole thing in one neat package, but I wonder if you and the other resource have identical availability schedules — what does the resource utilization view show for that task?