I have an RKward project in a subdirectory of a directory called Projektėliai. RKward fails to display the Lithuanian letter "ė" in that word, writing the unicode replacement characters (whatever that thing is called :) instead.
I have noticed it in three places:
Initial "What would you like to do" dialog
Please find the three screenshots attached.
I am using RKward 0.6.1 on Kubuntu 13.04.