Winlogbeat Original Field remove

Hi,
Why some field are remove when convert to ECS ?
For exemple DestinationIsIpv6 from sysmon:

  • 'winlog.event_data.SourceIsIpv6' is remove after create 'network.type'.

As I have to work with beat agent and industrial system (no beat allowed) I have to write 2 query to find the same information :frowning_face:.

Thanks

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