Pipe Network - Part Catalog Problem

[b.akcor]

Hello everyone,

I am designing a tunnel drainage model and working with pipe networks. From the beginning of the design, there were no problems about the pipe network catalog. But I have just faced with this problem;  I copied my file to get a backup with the old version, then I continue to work with the copied one. I finished my work and closed the file. But when I opened it again, I saw that the file is not reading the pipe catalog. I checked the pipe network catalog, it is looking everything is ok. The custom part is appearing in the folder but it is not showing up in my design dwg. When I check the backup dwg, everything is working. I don't know how to solve this problem with my new design file.

Here I am adding some screenshots to tell my problem more accurate,

Thanks in advance.

[Nilesh_Chaudhari]

Hi @b.akcor ,

Can you try to create a pipe network in a new drawing using the same catalog? 

Also, you can try DREF the pipe network in the design drawing.

It might possible your drawing file is corrupted. Try WBLOCK.