After click on bookmarked link or enter url in a address string KRDC shortly blinks with blue and returns to empty screen. Started from command sring don't say about errors. freerdp opens RDP links by name or by IP address without problem.
It turned out that properties contains setting in "Shared resources" that is removed in a distributive. And RDC don't says about error at all - that only don't work. That is serious bug, I guess.
*** This bug has been marked as a duplicate of bug 394551 ***