Hello, I have a very heavy model of a highway road from civil engineering. It is a naviswork-exported model. Its size is very large and it has many parts. I noticed that when the viewer load the data , it show a transparent blue box proxy shape for the real model while streaming the data. And the problem is the streaming is not consistent in the performance and sometimes it is very slow to completely load the data, so that it seems that some parts of the data will not load forever. The streaming seems to stop but the model is not completely loaded. The blue boxes are still there and it is not streaming data any more. And, whenever I try to load this model, the viewer sometimes load almost all of the parts and sometimes doesn't load at all, and it is very random. I want to share this problematic data here, but I don't know how.