non critical bug that is unlikely to be noticed or affect the game.
If your Rogue is not wearing a chest piece and you use Syncronised Strike, your Rogue disappears…
If you equip a chest piece, and execute SS again, your character reappears…
Note, the character is still targetable by Mobs so this is purely a graphical anomoly.
Have tested this a few times and seems totally repeatable to me. Obviously you wouldnt use a Rogue without a chest piece so this is not really serious and I only noticed it while theorycrafting & testing skill interactions…
Cannot see any message in the player.log that could be related to this…