RRDI doesn't support enumeration_list in RTC 4.0.4

Creating reports in RTC 4.0.4 using RRDI, I am unable to access or place an enumeration_list field. Enumeration_list fields were introduced in 4.x to allow for multi select options in a form. We utilize the enumeration_list to add customers to work items. The field is not accessible in the RRDI Report Studio. I have gone under Operation Data --> Request--> and gone through all the available string and enumeration options. I can find customer_list which is the field created as a enumeration_list under however, when I select the name values they show up as literal.s9 etc not the Customer name that resides in the eunumeration field.

I am unable to design a report that allows prompting to select A customer(s) from a list or create a report that references the customer list field to produce customer focused reports. It appears that enumeration_list is not supported in RRDI this is a huge problem any ideas or options to fix this?