Fleet-server mapping error in 9.0.2

[Mario_22]

I wrote the same problem.

Fleet server error: "Eat bulk checkin error; Keep on truckin'"

Hello, Since March 20, an error has appeared in the fleet-server logs {"log.level":"error","@timestamp":"2025-04-23T10:21:12.631Z","message":"Eat bulk checkin error; Keep on truckin'","component":{"binary":"fleet-server","dataset":"elastic_agent.fleet_server","id":"fleet-server-default","type":"fleet-server"},"log":{"source":"fleet-server-default"},"error.message":"elastic fail 400: document_parsing_exception: [1:207] object mapping for [local_metadata] tried to parse field [local_metadata] as…

I think that problem is with upgrading alestic agent and It's stucks in progress. He can't upgrade and he's in frame task which a status is in upgrading (c.a 1 month).