RRC 3.0.1.2 Multi-Select Attribute Values Problem

We have an artifact type with several user defined attributes.  We have a situation were more often than not, when ever someone edits one of the string values for a record, all of the multi-select values for that record get set to blank. Or in other words, all the values for multi-select attributes get de-selected. It happens almost all of the time, but not every time.  We are not knowingly doing anything different between the times the values get de-selected and the times it does not happen.

It is very frustrating needing to go in and set the values back every time. Has anyone seen anything like this before or have any idea on what may be going on?

Thanks in advance!

Rob