Chainages on Horiz. alignment & Vert. profile not co-ordinating

[Tonybere]

Hello,

I have created a horizontal alignment on my surface and created a vertical profile of that alignment. However, the endpoint chainage station listed on the horiz. alignment is approx. 8 meters less than that of the vertical profile (which is correct). How is this possible if the vert. profile was created from the alignment?!?!? I did not create any chainage equations that I am aware of, but I am an inexperienced user. I would appreciate any thoughts as to where I can look to fix this.

[Organic]

Is the horizontal alignment quite long?

[Tonybere]

A little over 3km.