I use the ReportExecution2005 service to render reports and on the first rendering of the stylesheet, and on the first call to ToggleItem I get "A session identifier is required for this operation" exception. If I go back to the first "get" to my page and
click ctrl+F5 it starts behaving well. Stylesheet and toggling works as expected.
In my local environment, both on my computer and testserver (64bit) it works first time, but in my customers environment (64bit) it fails as described. I've checked that we've got exactly the same version of SQL Server.
Any ideas where to start debugging?
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