New Relic saved same records with different timestamp

Hello,

I used the new relic open telemetry exporter to push the metrics to the new relic. I found I will get some same records (except the timestamp fields, in the timestamp field, these records have almost the same time interval)
I am sure that there is no repeated push logic in my program. I don’t know how this problem appeared. Any help is greatly appreciated.

@fou would you be able to share the permalink to the chart or query where you see the timestamps?