Invisible Enemies - Repost after update

I am reposting after the latest update, because the server problem or whatever it is seems worse after this update.  

One of the most consistent, and frustrating gameplay issues that I experience is what I refer to as invisible enemies, or enemies that do not appear until after they have killed you. And it is not uncommon that when you do see them prior to being shot, your trigger will not function (feels like a sponge). That seems to indicate that you are already dead on the servier but it has not registered yet.  What is the techinical reason for what I have described and can it be fixed?

Everything that happens in the game seems to have happened a full second before I see it.  Being shot by invisible players before they are visible to me. Being shot after taking cover, and a number of other things that seem associated with a lag between what is going on at the server and what we see has become so frustrating that I am leaving the game after reaching S129 with the hope that it would be fixed. 
 

And equally frustrating is that it has never even been mentioned in known issues or updates or anywhere!  Completely ignored like there isn't a problem.   I give up.  I guess I got my 100 bucks worth of frustration.