I met 2 bugs.
I met the Throne World bug as I went into The Ritual mission with my mates. The bug was regarding a portal that wouldn't open during the time we need to shoot the Threadweavers in their respective tower. It is in the 2nd phase and the first portal to your right as you climb up the stairs, facing the offering altar.
2nd bug was the Europa mission of Reforging the Past, the one which awarded The Lament sword. The bug happen to be in the last phase of the Bray Exoscience area. It is the one where we will transition to the Creation area. The mission pointer never moved to the next phase even though I have cleared the area, thus rendering the whole mission unplayable.
I may not have pictures to prove it but do play through to see where the bug is exactly. It is hoped that the description above can guide you to fix such a problem.
Cheers.
Forgave08#4133
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First problem; slide through the door or walk in crouched. Second problem; need a video.