In new API, all processes are serialized in JSON for their execution. For pipelines, only exported parameters are serialized. This is wrong for internal pipelines with non exported parameters having values. For instance if one create a custom pipeline and adds in it several fully parameterized pipelines for parallel execution, the final pipeline will have no parameter but internal pipelines parameters must be stored in the pipeline serialization.
In new API, all processes are serialized in JSON for their execution. For pipelines, only exported parameters are serialized. This is wrong for internal pipelines with non exported parameters having values. For instance if one create a custom pipeline and adds in it several fully parameterized pipelines for parallel execution, the final pipeline will have no parameter but internal pipelines parameters must be stored in the pipeline serialization.