nothing of this is an error its lag from your internet connection
if someone uses a skill before you that just means you had lag and pressed the mystery after his already aktivated
if you use a skill too late in the round (after 4th position attacked) the skill gets transfered into the next round

i never had that problem

you are right about the 2x but i didnt consider it because he was talking about pvp

but 2x is bad as in it goes out of sync really often (you can watch that in sa really obviously)