Hi @phillips1.michael,
The issue is that your pipe was creating in the T-Spline environment, so it is not solid geometry. Are you able to right-click and edit the T-Spline body from the browser tree (denoted by a purple symbol next to it's name). This should put you in the Sculpt environment which you can then use the Finish Form command to convert it into a BRep (boundary representation - solid, watertight geometry) which can be used in the drawing environment. If that doesn't work, you can use the Convert command to do the same functionality. If you share your file with me, I can show you specifically how to do this.
Thanks,
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James Youmatz
General Adoption Manager | Informed Design