After upgrading from FB 5.6.5 to FB 6.5.4, events stopped indexing

[Frederico_Ferreira]

Thanks @kvch! It did work. What I did was to add this filter to Logstash:

 filter {
  mutate {
    remove_field => [ "[host]" ]
  }
}

I did try to add drop_field to Filebeat but it didn't work. Only the filter worked.