@Pasi-Paasiala I’ve elaborated it here: https://society.solibri.com/topic/2405/solibri-9-13-4-has-been-released/11?_=1689078829846
where I have also mentioned the difference in encoding you pointed out by refering to the specific lines of the IFC:
Also another incompatible file I got today, exported from Revit 2021, is encoded the same way as the following line illustrates:
#34059= IFCPROPERTYSINGLEVALUE(‘Reference’,$,IFCTEXT(‘UV_O5_Freifl\X2\00E4\X0\che’),$);
I have to check if I can share a smaller model, but I guess it’s pretty obvious.