Multiselect pick list values deleted when editing contact.

Multiselect pick list values deleted when editing contact.

Hi there,
 
I have set up my contacts with pick lists and multi select pick lists to capture segment data. I have mapped a dependency field, with the parent field a pick list and the child field a multiselect pick list.
 
When I click edit on an existing contact with these fileds filled (with multiple options selected in the multiselect pick list), only one of the fields in the multiselect pick list field remains highlighted. This means whenever I edit a contact this way, most of the information from the multiselect field is lost.
 
I assume this is a bug that will need to be fixed?