IP - SP17 - Illegal access to a string (offset too large), error key: RFC_E

Hi ,

I am executing a planning sequece in the planning modeler. Each time I am getting the following error 'Illegal access to a string (offset too large), error key: RFC_ERROR_SYSTEM_FAILURE' . I have commented out all the code in my class which is in the custom planning function. Still I am getting the same error. I found one OSS note but as we are already in SP17 ( BI 7.0) , I do not think that will be applicable. Hoping it a memory issue , I logged out of the system completely and logged. But still I am getting the same error. Let me know if any of you has come across this kind of error.

Points will be awarded for helpful answer.

Thanks

JC