Savepoints stuck in IN_PROGRESS state in beam 2.27

The problem:
After triggering a savepoint, it's status is stuck in "IN_PROGRESS" for ever.

Context:
Executed with: beamn-runners-flink-1.10, beam-sdks-java-core:2.27, beam-sdks-java-io-kafka:2.27

Using 

KafkaIO.Read to consume messages from Kafka

Observations:

• checkpoints are no longer being executed.
• files of savepoint are being created on external fs correctly
• no exceptions visiable in jobmanager logs nor in taskmanager
• upgrading flink from 1.10.x to 1.11.3 doesn't resolve the problem

The problem exists after upgrading version of beam components to 2.27.

From flink console:

Above image presents the state of after executing savepoint. 
We can see that first operation is being fiinshed properly but ReadData/KafkaIO is still running which ( most-likely) is the cause of why savepoint stays in IN_PROGRESS state.