Unsure where or how to report this, but I (and all users I’ve checked with in General Chat throughout the evening) have been experiencing severe lag spikes on a regular basis tonight. Definitely impairs testing.
Thanks! Enjoying testing a lot so far otherwise.
I haven’t even been able to access my server all day except for about 20 minutes. 
Been doing some housing stuff on the one server that is working and had no lag there but I did NOT go out into the open world as I am just waiting for my server to come back up and continue progression testing.