I’ve got a customer with what looks like a character encoding issue in either #elasticsearch or #fluentd. Here’s the message: 2021-06-08 17:05:50 +0800 [warn]: #0 dump an error event: error_class=Fluent::Plugin::ElasticsearchErrorHandler::ElasticsearchError error=“400 - Rejected by Elasticsearch [error type]: mapper_parsing_exception [reason]: ‘failed to parse field [me…