This first happened on my sanitary sewer profile. I turned on all layers, didnt show up. They still existed per the plan view and structure data table, but didn't show up in the profile itself. I edited the network to add another structure and pipe on top of the existing line in plan view and added that part to the sanitary sewer profile, and they showed up fine. I started playing with the START and END INVERT ELEVATION of the new pipe and discovered that the problem was in the START INVERT ELEVATION field. If I set the START INVERT ELEVATION to the same elevation as my existing pipe, down to the 0.1, it would disappear. When I changed it up or down by 0.1 it would reappear. I ended up moving my invert elevations down by 0.1 to make it work but now the problem happened on my storm sewer profile, where ALL structures disappeared, and the same START INVERT ELEVATION problem exists. I do not want to alter the inverts of the already existing storm lines as I have tight tolerances to work from. Has ANYBODY ran into this issue before, and if so, how in the world did you fix this? I have been at this for 3 days straight now and it's infuriating The file is too large to upload here.