Error invoking service! (No iteration for {0} found.)

Hello
I am receiving the above error when trying to create a plan with the Web UI in RTC 2.0 I believe it might have something to do with having multiple timelines defined. I have two test projects, one with multiple timelines and one without. I can create a plan in the project that does not have multiple timelines. The one with multiple timelines I am receiving the error on. When I removed the multiple timelines I was able to create a plan. How can I fix my timelines in order to have mutliple timelines and still create plans?

Thanks in advance for your help.