I remember there was a bug at the start of the event that caused support EP to not be obtained if you didn't get the final blow, but once they fixed that we got all of that EP credited to us at once. I highly doubt you will be missing out on your earned EP.

No EP reward after event, i proved it to support (with that 3 wins i should picked one). I'm worried that this happens again.

Edit: Last guard counts, but message stucks on pointed ones.

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EDIT 2: Someone that need one hit? I'm out of Stamina and i have focus.