I have encountered a serious LAG bug in the monolith when engaging the Rift Beast, i can facetank the omens, the Champions etc. But as soon as i engage the rift beast and its like down to the last quarter health i start lagging and it kills me, this is really annoying as i’ve lost so many echo rewards already
You should use the in-game bug reporting tool (F8 by default) to report it. It attaches a bunch of game data and will let devs know what’s going on.
Even if you report after dying and lag clearing, it will still send game data from when you were lagging.