I've created a number of pipe network parts lists in order to stream line my project data and plansets. Everything from the Classic sanitary sewer to Lighting and Signage lists for all the site structures. All of them work smoothly with out issues except my water parts list. I've recreated it twice, used it on several machines with a wide range of capabilities, etc. but ever time i start to create pipes based on the list it locks my machine up. Some times just for a couple minutes other times until i have to force it to close. None of the others even slow my machines down. I'm still running C3d 2017, has anyone ever seen this before? Or better yet know a solution.