BRCM - Cable Length 0m After Cable List Import and Raceway Design

Hello and Happy New Year Everyone!

Recently I have tried to use BRCM with the Import Cable List tool after designing the the Raceway from the control house to the substation bays, however for many of the length results after running the routing the value is 0m. I've checked the connectivity of the cable routes/ raceways and this doesn't seem to be the problem.

Looking for a solution for this, or a proper guide to achieve the result i require. 

I can upload the required files if necessary.

Thank you.