Guild Wars 2

Stepts to reproduce:
1) Enter Hearts and Mind story from Heart of Thorns living story
2) Procede until you face Mordremoth
3) Get to the Rift stage
4) Use the rift

Result: when the user uses the rift, Mordremoth’s weakened bar doesn’t decrese to 0, without any rifts open

Expected result: The rift should reduce Mordremoth’s weakened bar to 0 each time the user uses the rift

Repro rate: 100%

Attempts: 3

Also in the final rift stage:
+ The rift is gone and nothing happened to Mordremoth.

Tried with other player: he opened the rift, first time also bugged in the same place, (after second attempt the game did’t bugged but my game crashed, other player has finished the story – I didn’t).
Tried to do it myself again – also by restarting fight by killing my character – bugged in the same place.

(The reason can be the lightning that struck you while trying to open the rift)