I'm having an issue with an IFC export from Tekla 19 to ArchiCad 17. The Export works fine though (no errors at all), but the problem seems to be with the Eaves Haunch (102). It's a connection between a column and a beam tilted 5°. Both HE-B 500. Just you get the idea. The whole model in ArchiCad shows up, except for the haunch itself. Even the bolts are there, but in the haunch area it cuts through the whole beam and where the beam should show up it's totally empty. In Tekla itself everything's fine of course.