I've just had to roll back to version 10.1 R2 2016 SP1 as the latest version (10.2) appears to have a binding issue. I have a report that contains a sub-report that has its DataSource bound to a collection on the main reports object collection. Since upgrading to 10.2 all records show the same ( first record) child collection records. Rolling back to 10.1 cured the issue. Is this a breaking change that requires a design change or is it a bug in this release. Regards Brian