LinkedIn have confirmed they are facing an issue that is impacting replies to comments.
Agorapulse users may see this error when trying to reply to LinkedIn comments in their Inbox: Error while publishing a comment on Linkedin. java.util.concurrent.ExecutionException: com.linkedin.restli.server.RestLiServiceException [HTTP Status:422]: com.linkedin.restli.client.RestLiResponseException: Response status 422, serviceErrorMessage: ERROR :: /parent :: ReadOnly field present in a create request
We are waiting for more information from LinkedIn. We will update date this status with any further developments.