Yeah. I had that problem on Era which was weird. Sometimes it didn't detect anyone, other times it did.
I just used this
PHP Code:
if (leftmousebutton)
for (temp.foundPlayer: players)
if (temp.foundPlayer.x in |mousex - 3, mousex + 3| && temp.foundPlayer.y in |mousey - 3, mousey + 3|)
{
cTARGET.text = temp.foundPlayer.account;
break;
}