Receiving Error in Joint Data Set in Library Using Multi-select Parameters

I have two Data Sets that both have multi-select Data Set parameters. The multi-select Data Set parameters are tied to multi-select report parameters in the before open function of the Data Sets. For example, 
 
this.queryText = this.queryText.replace("customer_name_list", params["rep_cust_name"].value.join("','"); 
 
I am using a Joint Data Set to join the two Data Sets. I copied all three Data Sets to a library. I can preview all three Data Sets and the data seems to be correct. However, after I click on the OK button when previewing the results for the Joint Data Set, I get an error that starts out similiar to: 
 
Fail to execute script in function ___bm_beforeOpen(). Source:

" + this.queryText = this.queryText.replace("customer_name_list", params["rep_cust_name"].value.join("','");

I am also having trouble updating the Joint Data Set in the library. If I want to add a Filter or Computed Column, I open the Expression Builder and I am able to see the name of the Joint Data Sets, but when I select the Joint Data Set name, I am unable to see the names of the rows to select. After I add the Data Sets to a report and preview the results for the Joint Data set, the icon that displays next to the Joint Data set shows it has been edited (eventhough I did not make any changes to the Joint Data Set). 
 
I recently noticed that the error message occurs even when the Data Sets are created in a report and not from a library. I am using BIRT version 3.7.0.

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mwilliams

Sorry for the delayed response. Are you still having this issue?