netflow data not displayed in the NFA interface reports

Document ID : KB000103914
Last Modified Date : 02/07/2018
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NFA 9.3.8 : console + 1 linux harvester

lastflow field is well updated
data are not displayed in the interfaces report for the last day ;
data displayed for the previous days , 1 minute and 15 minutes

all services are running

No error in the netfow logs for the current day .
NFA 9.3.8
win2012 + RedHat 6.7
there is some old files in the ../netflow/datafiles/reaperwork and reaperinput folders
deleted all files under ../datafiles/reaperwork and reaperinput + restarted harvester / reaper / poller services