Surfaces won't cut

Hi,

My Coworker has  a model in which he is trying to cut surfaces with another surface and it says that they are not coincident when they are clearly touching and or drawn past the intended cut as should be. In addition the are surfaces he is trying to knit that say they are not closed even though they were created from the same geometry that they are trying to knit to. Any ideas?

SolidworksParts And Features