No OVS flows found in operational data storage of controller, after doing multiple reboot of ovs switch, minimum of 10 times

I have connected 1 # css and 10 ovs (mininet) switches.

Configured flows for
40 # flows to css switch
50 # flows to mininet #1 switch
50 # flows to mininet #2 nd switch

Did multiple reboot on mininet switches say minimum 10 times, then checked the operational data storage, mininet flows are not found there. Please check the below details and let me know if i can raise TR for this in ODL

mininet:
==========

mininet@mininet-vm:~/mininet\> sudo mn --controller=remote,ip=10.183.254.252 --topo linear,10 --switch ovsk,protocols=OpenFlow13

• • • Creating network
    • Adding controller
    • Adding hosts:
      h1 h2 h3 h4 h5 h6 h7 h8 h9 h10
    • Adding switches:
      have protcol params!
      s1 have protcol params!
      s2 have protcol params!
      s3 have protcol params!
      s4 have protcol params!
      s5 have protcol params!
      s6 have protcol params!
      s7 have protcol params!
      s8 have protcol params!
      s9 have protcol params!
      s10
    • Adding links:
      (h1, s1) (h2, s2) (h3, s3) (h4, s4) (h5, s5) (h6, s6) (h7, s7) (h8, s8) (h9, s9) (h10, s10) (s1, s2) (s2, s3) (s3, s4) (s4, s5) (s5, s6) (s6, s7) (s7, s8) (s8, s9) (s9, s10)
    • Configuring hosts
      h1 h2 h3 h4 h5 h6 h7 h8 h9 h10
    • Starting controller
    • Starting 10 switches
      s1 OVSswitch opts: protocols=OpenFlow13
      s2 OVSswitch opts: protocols=OpenFlow13
      s3 OVSswitch opts: protocols=OpenFlow13
      s4 OVSswitch opts: protocols=OpenFlow13
      s5 OVSswitch opts: protocols=OpenFlow13
      s6 OVSswitch opts: protocols=OpenFlow13
      s7 OVSswitch opts: protocols=OpenFlow13
      s8 OVSswitch opts: protocols=OpenFlow13
      s9 OVSswitch opts: protocols=OpenFlow13
      s10 OVSswitch opts: protocols=OpenFlow13

• • • Starting CLI:
      mininet>
      mininet>
      mininet>
      mininet>

controller output:
==================
mininet@mininet-vm:~/test\> ./inventory_crawler.py --host 10.183.254.252 --auth --datastore operational
Crawling 'http://10.183.254.252:8181/restconf/operational/opendaylight-inventory:nodes'

Totals:
Nodes: 11
Reported flows: 41
Found flows: 41
mininet@mininet-vm:~/test\>
mininet@mininet-vm:~/test\> ./inventory_crawler.py --host 10.183.254.252 --auth --datastore config
Crawling 'http://10.183.254.252:8181/restconf/config/opendaylight-inventory:nodes'

Totals:
Nodes: 3
Reported flows: 0
Found flows: 141
mininet@mininet-vm:~/test\>

mininet output:
===============

mininet@mininet-vm:~/integration/test/tools/odl-mdsal-clustering-tests/clustering-performance-test/ovs-scripts\> ./get-total-found.sh
Switch s1: 50 flows
Switch s2: 50 flows
Switch s3: 0 flows
Switch s4: 0 flows
Switch s5: 0 flows
Switch s6: 0 flows
Switch s7: 0 flows
Switch s8: 0 flows
Switch s9: 0 flows
Switch s10: 0 flows

Total: 100