Supportlines Not Aligning with Alignment

Good Morning,

I'm having an issue when placing the supportlines. The line placed in the 2D layout does not fall exactly on the alignment stationing (See Figure below; Pink line is supportline & white line is the tick mark). I changed one of my bents to a stationing with no decimals and no skew and it still placed it a little more than 1/16" off. I did this because I thought it was a rounding error, but now I think it could be something to do with how the program is programmed for the 2D to 3D projection? Has anyone else noticed this issue?

Thanks for any help. I know it really won't influence the design, but I still would like my model as accurate as possible.