v16 relation matrix view cannot create relations

[ea0921]

situation: Archimate business diagram with businessRole and businessActor

Switch view to "Relation Matrix view"
Set businessRole as source, businessActor as target
Select an appropriate field for role/actor
Hit spacebar, select "assigned by" or "serving" or any other.... no joy, nothing UML compliant here..

In the graphical view I can create valid relations (they are shown in the relation matrix)
I want to use the relation matrix to quickly assign relations, I think that's what it's there for but it does not work 

[Eve]

If you're getting the not UML compliant error message that probably means you're using an earlier version than 15.2.1560.