Haven't touched IFC stuff for a long time. I have to import a revit file via IFC. I have tried R15 and R16. R 15 error "inconsistency found during IFC operation. Operation aborted" whilst R16 just doesn't do anything. I can however open the file in Solibri model viewer and see there is a model.
I'm reasonably sure the issue is that the model was created in a early version of Revit (not sure which version, but I can find out). Are there any specific instructions I should give the operator to try re-export in a particular IFC format?
Any tips would be great.