ABO Bulk Request - All Instances Sub Process issue

We are implementing the bulk order functionality.While running through the workflows, we are facing a road block.
In the workflow "ABO Bulk Request - All Instances Sub Process", in the step "Query All" step.
The "SearchSpec" input arguments always gives a error, that the expression is "grammatically" incorrect.
It is happening to the vanilla workflow version.

Does any one have any pointers to it?

Thanks
Ujjyal Sarkar