Drawing Dimensions keep detaching (Clamp Collar)

Hi all,

Ok I have a clamp collar style detail and when I dimension it all is good, except every time I do anything to the model, section line etc, all my dimensions detach from the section view?

I have done this in the past and don't remember this many issues so do I have something set wrong or is this a bug on this particular release (2016 SP05)?

Regards,

SolidworksDrawings And Detailing