No performance issue in sandbox or bot match, but horrific stuttering in ranked game

[Pontik]

After the latest patch some of my matches have terrible performance issues, affected multiple people in the lobby but not everyone. The Shiv and Wraith on The Sapphire Flame team were experiencing the same problem, both restarted but it did not resolve the issue. Prior to this patch I have not experienced performance issues outside of the memory leak, as long as I restart the client between games it is fine. Because sandbox and bot matches are fine, seems like a server-side issue.
Match ID: 27823091

 

[Pontik]

Had this happen again, was able to use the F7 menu to find that it was packet loss. Not experiencing packet loss in other games or when running any tests, just seems to happen when playing Deadlock ranked. Have not had it occur outside of ranked mode.