I have added a pipe network to my profile view and for some reason the structures do not extend down to the inverts of the pipe. So the pipes are lower than the structures. I tried changing the sump, and the rim to sump (rim to sump can be editted but immediately goes back to what it originally was when you click apply. I've also tried clicking the structure and extending it downwards but it doesn't change. I've tried changing the stye and still have the same issue. Any ideas?
How far below above the pipe is the structure showing? Could you have the pipe outer walls turned on and no thickness to the structure bottom?
Are you sure the pipes are 'connected' to the structure? Graphically, in CAD they may look connected, but check the structure properties under the tab 'Connected Pipes' to see if they are reading as connected to the structure.