Connectors with status "UNASSIGNED" after upgrade to Kafka Connect 7.7.0

hello,

after upgrading to Kafka Connect to the 7.7.0 version, several connectors move to UNASSIGNED state.

I saw this happening with different plugins like Snowflake Sink Connectors, JDBC, ADLS, Replicators. The error message is:

connect-3 connect [ERROR] 2024-08-28 09:17:08,299 [DistributedHerder-connect-connect-3.local:8083-1] org.apache.kafka.connect.runtime.Worker awaitStopConnector - Connector '<name>' failed to properly shut down, has become unresponsive, and may be consuming external resources. Correct the configuration for this connector or remove the connector. After fixing the connector, it may be necessary to restart this worker to release any consumed resources.

Tried to restart, stop, resume the connectors and nothing changed. Also, restarted all the nodes with no luck as well.

Downgrading to the 7.6.1 version makes the connectors work without any problem.

Did somebody encountered this issue with the 7.7.0 version?

Thanks

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