So this achievement did not unlock during my v1.0 playthrough. Looking for the bug I found a good soul uploaded a save where the first rift is not completed.
Playing through helped some to get the achievement, but not me.
I played the rift twice already and still not unlocked.

Plz help :)

I even got hold of my own old saves, loaded the correct one, completed the first accidental rift and still no achievement.

EDIT: Got it! found a thread on other big store discussion and I just did let the Resolve run out and so aborted the rift and got the achievement!