New Post: Trying 4.1 release and reports are failing

I am trying 4.1 and everything is working well until I view the reports. I can view the dashboard, but when I drill down to the sub reports or try to deploy the projects I am getting the error below. Has anyone seen this?

An Error occurred during local report processing.
The definition of this report is not valid or supported by this version or Reporting Services.  The report definition may have been created with a later version of Reporting Services, or contain content that is not well-formed or not valid based on Reporting Services schemas. Details: '.', hexadecimal value 0x00, is an invalid character. Line 963, position 10.

I am deploying to SQL 2014 and this is happening on all RDL's except for PolicyDashboard. I just opened the solution that is part of the download for 41 and changed the data source and attempted to deploy to my SSRS server.