Hi,
Currently, we have an issue with running Chart on Azure due to a defect in another .NET Framework component. The bug has been fixed in Windows 7 version of the .NET Framework. So when that version of the .NET Framework is released into the Azure Production environment, Chart will run on Azure.
In addition, we are currently working on a QFE for that fix for Windows Vista and Server 2008 so that we can all run Chart on Dev Fabric. I don't have an ETA for the release of that QFE yet.
Thanks.
Stella Chan
Lead Program Manager
SQL Server Reporting Services