This issue involves both TBC and Trimble connect.
I am trying to export utility networks from TBC and view in Trimble connect. I get the utility networks to come through but the colors do not appear to be working correctly only some of the colors show in Trimble Connect. When I drag the LandXML into a blank TBC project all of the colors appear to show up correctly (drainage: orange, sewer: green, existing sewer: off-green, existing drainage: off-orange). I think this is an issue with Trimble connect but I do not have a great way of isolating the issue.
I tried bringing this into Civil 3D and ran into a ton of other issues, so this wasn't a great check. Somethign for another post.