The problem is still present. The flourish line suffers from it too as it often misses the second hit because the first hit knocked back the target too much. I died a couple more times from this problem in much frustration again.

I have these problems too, Tokinsom. Except I'm using the Calibur line (Ascended). "Missed" attacks seem to be happening more often lately. It can happen any time during a combo, though I agree that it happens most often on the final swing. My character gets right up in a monster's face (within range, facing it), swings, and the sword goes right through the enemy without doing anything. And then I get my face munched because the monster's attack wasn't interrupted like it should have been.

I've also had other anomalies, such as the occasional repeated attack animation, as well as increased instances where I'll be standing still and my character warps a slight distance. Usually a single tile distance, occasionally more. Fortunately, I haven't been warped onto some spikes while waiting for them to go down, but I fear it's only a matter of time.

Lagometer always shows 4 bars, with the rare drop to 3 for a second.

Still, at least it's not like guns. Guns have almost no sync to the server. All that gunfire you see on the client is mostly different from what's happening server-side. Sometimes you fire a shot with the gun, it hits its mark, and nothing happens. Maybe something similar is happening with swords. I don't know why some games have trouble syncing up weapon attacks properly. I have a couple of shooters I'm playing now that like to do "Ghost Shots", which is a shot that you fire that doesn't do damage or subtract from ammo because, according to the server, the shot was never actually fired. Such annoying stuff.