This is due to a bug in the JRE that is included in the Variations client. There is no current plan to provide a workaround.
See the entry in Java Bug Database for more information: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6575395
In the edit container window of the cataloging UI, on all tabs except the description tab, there is a line displaying the container title directly beneath the container ID at the top of the pane. This line doesn't use a Unicode font and thus displays incorrectly.
This is planned to be fixed in the next version of Variations.