I got the support email from EMotiv official Engineer, as he said, they also have this problem.
Hello,
We are sorry for this bug. Mind Your OSC is a third party app. Now they haven’t updated libraries so it only runs well with Epoc headset. I tried Epoc+ on my computer and it connected but data is not correct.
I will send an email to you as soon as they fix that bug completely.
So, even it be connected with Processing, you still can’t got correct data from the headset.