Visualization Renderer unrecognized error

[Azzoz06]

Hello,

I'm running Cognos 10.2.2 FP2 on Windows using IBM HTTP Server Web Server. For any Active Report I create in RS using RAVE visualization it fails with the following error: The visualization renderer failed due to an unrecognized exception.
Changing the Render Method property to Server (instead of Client) solves the issue although I don't really understand the impact of that change.

I saw that IIS users need a specific configuration for IIS to serve JSON in order for Rave Visualization to work, I wonder if there is something to be done on the IBM HTTP Server conf to workaround that problem.

Any help or clarification would be appreciated (I'm not sure if there is actually an error).

Thanks,
Manu