I've configured the additional settings and now I'm logging some data that is on UserData.
I was trying to log some data from DialogData but it was always null, so I debugged it and I realised that on the middleware dialogData is empty, as it was a different dialog.
customFields: {
userData: [ "currentBot", "country", "locale", "BotBuilder.Data.PreferredLocale" ],
dialogData: [ "BotBuilder.Data.Intent", "BotBuilder.Data.WaterfallStep"],
conversationData: [],
privateConversationData: []
}

I think you should disable dialogData to be defined on customFields
I've configured the additional settings and now I'm logging some data that is on UserData.
I was trying to log some data from DialogData but it was always null, so I debugged it and I realised that on the middleware dialogData is empty, as it was a different dialog.
I think you should disable dialogData to be defined on customFields