We are currently setting up a connection from Pega to Kafka (AWS MSK) using Kafka dataset triggered through a Dataflow. The Kafka dataset is configured to use a json datatransform which runs on its own without any issue. 

When configured as source in a dataflow and running the same dataflow as a realtime process, the the messages fails at the dataset call with  UnsupportedOperationException error.  

Created DSS dataset/CLASS_NAME/DATASET_NAME/JSONDataTransform/deserialization/useDSMPage as a fix suggested from a previous/similar question : https://support.pega.com/question/kafka-dataflow-fails-when-parse-json-data-trasform  but the issue still persists.

Is there anything else we could try to fix this?