How to recover from hanging on ExportToStream

I'm using SAP Crystal Reports, developer version for Microsoft Visual Studio v13.0.2000.0.

My code is as follows:

foreach (var report in reportList)

{

   var document = new ReportDocument();

   document.Load(fullPath);

   document.SetParameterValue(fieldName, value);

   var reportStream = (MemoryStream)document.ExportToStream(ExportFormatType.PortableDocFormat);

   document.Close();

}

It works perfectly. If something goes wrong on my database, I will get the "Failed to retrieve data from the database" error which is fine and expected. However, if I catch this error, recover my database problem and try again (next run of the foreach loop), my application will hang on the call to ExportToStream.

I tried the same scenario witch Crystal Reports XI application. At first If I try to preview my report it will give me the "Failed to retrieve data from the database" error. Then if I recover my database error and retry the preview, I will get a "Accessing Database" message in the left corner and it won't be fixed until I reopen the Crystal Report application (reopening the report file does not fix the problem).

Any help is much appreciated.