Force logstash-forwarder to index newest events first

Elastic Stack Logstash
1

Hello,

I'm shipping logs with logstash-forwarder and for one of my types I can see that its mainly indexing old data (mostly near the dead time), whcih results in not having events for the last four hours. Instead, it's entering old data first. I would like this to be configured somehow and to force it to index the newest data first, and then if theres nothing new - to index older data.

Here's my configuration block:

GW LOGS BLOCK

    {
    "paths": [
    "/srv/logserver/data/2016/*/*/srv-*-gw0*/*.GW0*.GATEWAY*"
    ],
    "dead time": "100h",
    "fields": { "type": "applog" }
    },

What am i missing?