I'll admit, despite my liking of 2E and 3.0/3.5 lore info dumps in the various books, I'm pretty much not familiar with WHICH Apocalypse/Transition happened with each edition that led into the next. The Times of Troubles could be the 1E to 2E transition and I'm accidently associating it as the 3E to 4E transition, etc, etc. The only one I know is the lead in to 5E was the Sundering and that the 2E to 3E transition happened as a result of "Die Vecna, Die" and Vecna being Vecna.
I wish it was true second weave with different mechanics... but way it worked never did anything to me.Yes, I wasn't ever impressed with the shadow weave concept. FR is a very rich campaign setting with huge amounts of lore and background, which is one of the reasons I love it. Pleasantly, I haven't any cannon FR background lawyers in my group.
It was meant to be the event that reshaped the D&D multiverse (i.e. the "Great Wheel" cosmology) from 2E to 3E, whereas The Apocalypse Stone (affiliate link) was the one that did so for homebrew settings."Die Vecna Die" didn't really register an impact on the FR line.