Cannot direct-paste German umlaut characters

[maclemming]

I am trying to do a direct-paste of a string containing the German umlaut characters, and those characters are not getting sent.
I copy the text öäü1234 from the OSX side, and then select the Remoter session, and do a direct paste, and all I see is 1234.

I am using Remoter 1.2.4 (3.6.5) on Mountain Lion and connecting to an RDP session.
I tried using all 3 keyboard modes and none of them work.