Infoworks/ Replicator jobs failing with below error is due to expiry of the configured Service Account in the Infoworks/ Replicator jobs or custom script in the bash nodes.

Developers/Users please work with your internal platform management team to get the renewed Service Account and update it in all the places where it is being referenced.

{
  "error" : "invalid_grant",
  "error_description" : "Invalid JWT Signature."
}
    at java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.util.concurrent.FutureTask.get(FutureTask.java:192)
    at com.google.cloud.hadoop.repackaged.gcs.com.google.cloud.hadoop.gcsio.BatchHelper.awaitRequestsCompletion(BatchHelper.java:265)
    ... 20 more
Caused by: com.google.cloud.hadoop.repackaged.gcs.com.google.api.client.auth.oauth2.TokenResponseException: 400 Bad Request
{
  "error" : "invalid_grant",
  "error_description" : "Invalid JWT Signature."