ZCM 11.2
SLES 11 (SP1 I think)
Oracle Database

Installed (in our testsystem) a Reporting server.
Reports are running fine, but after installing SP4 on every predefined report I got "Cannot initialize Report Engine server (Error: RWI 00226) (Error: INF)". (Get the same error if I want to create a new report.)
Have not installed TID 7007710 because everything works before SP4.

(Uninstalled SP4 and Reporting and after building up from scratch Reporting works again without SP4.)

What can I try to get a functional system with SP4 installed?