Warnings for dockers after updating to 6.4

[wgstarks]

I seeing this repeatedly in my docker log. No idea what it means but didn’t see it before updating to 6.4.

time="2018-01-24T03:00:01.425632639-05:00" level=warning msg="Failed to delete conntrack state for 172.17.0.4: invalid argument" 
time="2018-01-24T03:00:01.729874707-05:00" level=warning msg="Failed to delete conntrack state for 172.17.0.7: invalid argument" 
time="2018-01-24T03:00:02.006782680-05:00" level=warning msg="Failed to delete conntrack state for 172.17.0.6: invalid argument" 
time="2018-01-24T03:00:02.425724158-05:00" level=warning msg="Failed to delete conntrack state for 172.17.0.3: invalid argument" 
time="2018-01-24T03:00:06.438976465-05:00" level=warning msg="Failed to delete conntrack state for 172.17.0.5: invalid argument" 
time="2018-01-24T03:00:10.611000498-05:00" level=warning msg="Failed to delete conntrack state for 172.17.0.2: invalid argument

 

Not sure but I think I’m getting this warning for each docker I have installed.

 

brunnhilde-diagnostics-20180123-1740.zip