Introduction to layout configuration - Problem picking up the noterod

I followed through the introduction to layout configuration. I managed Anna to place the Piston Head on the table but she is stuck there and doesn’t go to pickup the Piston Rod.

If I remove the Flow group 1 then Anna loops picking up the Piston head so the problem is in Flow group 2. When I inspect ProcessBuffer I notice the green ball is always in Processbuffer task and never goes to TransportOut task. I also don’t get any error codes.