Utility 3D model created by Openroads Designer merged into Microstation cannot be solid

I created a Utility model by openroads designer. Other discipline need my model as reference. But they use autocad which cannot use my model as reference. I have to merge it to Microstation V8. But after I merged the 3D to Microstation, the manhole or other utility become cell even I change display as illustration model, it is still in hollow line or arc. But My colleague create another utility model and used same procedure, his model is solid after merging to Microstation. I wonder my setting maybe different him, but I cannot figure out what problem is. Anybody can help?

 become cell after mergeextend element after merge

The left image is form my computer, the pipe is solid. The right image is from my colleague, all of the elements are extended element

Looking forward to hearing from you