Filebeat is installed and successfully transferring logs to the ELK server. However, the index is not appearing in the Kibana UI. Despite trying different index names, I'm unable to see the index on the ELK server. Communication between the ELK and the node, and vice versa, is successful. Please help me identify the error or find a solution. In the Filebeat logs, I couldn't find any errors related to file transfer; it seems to be working correctly.