The report grouping appears to be incorrect on 64 bit runtime. The report displays as expected when run as 32 bit process. It appears to be a regression of a bug fixed on SP5 from this thread http://scn.sap.com/thread/3288217. I am using ADO.NET dataset to bind the data to the report. If there is a private upload link, I have a VS solution with the report and data, that I can upload.
Environment:
Crystal Reports Version: 13.0.7.1136
Operating System: Windows 7 x64
NET Framework: .NET Framework 3.5 SP1
Visual Studio 2012
Update:
Installed support pack 8 (13.0.8.1216). The issue is reproducible on support pack 8.