Unable to reclassify objects

[Kamelite]

I got this TPL-file, and I have to do some reclassification. However, it will not let me. Meaning that, I can classify a wall as a door, but it still reports as IfcBuildingElementProxy. This is in AC25, however, the issue still remains if I open it in 28.

This is an IFC, just loaded into Archicad. I did some testing, creating a wall with the wall tool, same thing. Classified as wall, IFC type as IfcBuildingElementProxy.

It worked like a charm, of course, doing the same thing in a new project.

I did, however, reclassify a whole project just yesterday, no issues whatsoever, also an IFC imported into Archicad. 

I have tried every trick I know, including opening all locked layers, without making any difference. 

Any Ideas?

.Kamelite

[Kamelite]

I think that solved the issue!!

.Thax a lot!!