Bit of a strange one. I have a custom window type I've created as a SKYLIGHT. When creating it I did futz around with the representations and deleted everything except the Model/Body/MODEL_VIEW, and it seems I broke something in the file. The reason for doing this being that a regular window footprint doesn't work for a skylight tilted at an angle. Now when opening the file, no representation is initially picked for the instances of this type, so I just have the manually cut roof hole, minus skylight. Now, I can go in and activate the representation for the instance/type, and this is fine until the next time I reload the file. If I forget to do this then any created drawings are missing the skylight, until I have activated the representation. I'd prefer not to recreate the window type from scratch if there's a simple fix. I've tried "Manually Save Representation" and "Convert to Tessellation"... no effect. I've tried inspecting with the Debug panel, comparing it to a differently width-ed (but working) sibling. Even looking at that, I can't see an obvious culprit.
Has anyone seen or solved this before? How to set the default representation used at loading? I'm usually pretty good at figuring things out myself, but this is vexing me.