slips isnt reading the src and dst mac of conn.log flows correctly

[AlyaGomaa]

cmd:
./slips.py -e 1 -f ../Dataset/f70189ef3854e70101ef61b17c0a7ed3ca6dcc45e78b9061955128913e2cb06c.pcap -o alia

the conn.log flow with uid CynWV6peBUoEEjK7d has a source and dst mac in the log file, but slips sees them as " "