That message indicates the input ran at 2018-10-17 16:53:20.090000 UTC.
The start date used for the query was 2018-10-17 16:20:41.
Since your query window size is 60 minutes, the end date used was 2018-10-17 17:20:41 (start date + 60 minutes)
The input will skip this query if the end date + 90 minutes (your delay throttle) is greater than the time the input runs.
So 2018-10-17 17:20:41 + 90 minutes = 2018-10-17 18:50:41 which is greater than 2018-10-17 16:53:20.090000.
Your Interval is 300 seconds (5 minutes). So, the next time the input runs at 2018-10-17 16:58:20 UTC, it will skip again and continue to skip until the run time is greater than 2018-10-17 18:50:41.
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