Hi there,
I'm trying to create a line chart that shows the average of field1(number field) in the last hour but showing an interval in minutes from field2 (date field), when I try to do with "Date Histogram", field2, interval minutes and using a search of the last 60 minutes it gives me this war:

Then I think it's because it would have 60 buckets and they don't fit, i tried to make a custom interval of 30m for example, and same war apear. It doesn't have any sense for me, I understand if I have a search of the last 60 min, and make a custom interval of 30 minutes like this:

it should work right?
I want something like this:
But X-Axis every minute in the last hour, or 5 min interval and I'm giving up 

. Anyway today after few hours we found the problem. When we creat the index on kibana, we select time filter (