ping hangs in FreeBSD 11

Hey guys,

I've started to play with FreeBSD 11 recently and noticed that /sbin/ping behaving really strange. It's hanging between ICMP requests with random interval.

see this example:

Not sure if it's related to network stack, same thing going on when I'm pinging loopback interface -

Is anybody aware of this?
I just realized that "FreeBSD Development" forum might be not really appropriate place to bring this topic. @moderators please move this topic wherever it belongs to, sorry for that