How to complete the FTP builder plan

Hello all!

I finished all the workouts (except the optional workouts) in the FTP builder plan, but it still says I have 9 days to finish the plan. And because of that I can’t start a new plan without cancelling the FTP builder plan.

Does anyone knows how to fix this? Do I need to do all the optional workouts also? Which doesn’t make it really optional…

Thanks!