Laura,
It looks like this is a bug with the developers of the report designer component we use. While we work to get a permanent solution, you can follow the steps below for a fix.
1. Click on the Detail Report band.
2. On the right hand side under ‘Property Grid’ look for ‘Data Member’.
3. Notice that it is likely “….” between the PurchaseOrder and PurchaseOrderLine.
4. Manually edit the Data Member so that it is just one “.”.
5. Click Tab on the keyboard. It may replace the “.”by itself with “..”, but that’s okay.
6. Preview the report and it should now work.
Hope this helps,
Need more help? Ask us about Method consulting services.
Valbon Shabani
Director of Education
Method Integration Inc.
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