if I start nxlog manul from the command line like

/opt/nxlog/bin/nxlog -c      # RedHat7

everything works fine ; it reads the input logs from the positions when stopped. if I start it as service

systemctl start nxlog

then it ignores all the records of the input logs written while it was stopped. at my input definitions I have

SavePos          TRUE
ReadFromLast     TRUE

any help is welcomed, thanks, G. Bouras