Splunk not indexing milli seconds

Hi All, I configured an input in which the timestamp field is in format 20180830112930314 (%Y%m%d%H%M%S%3N). The same has been configured in props.conf on Splunk Indexers but still I am seeing event time as 2018/08/30 11:29:30.000. I mean Splunk is showing 000 as milli seconds even if the timestamp field has milli seconds other than 000. Could you please help me to find out the issue? Thanks in advance.