Aybssal Depths Spawn Rate - Bugged or Undocumented Nerf

I believe something is broken with the Abyssal depths spawn rate this league.

I have been running abyssal atlas for the last 4 leagues and I've never seen the rarity of them as I have as I have this league.

The abyss's end properly either in a chest or a spire when I run them so it isn't the stalled out one where they just fizzle. (Still see those occasionally but not very often, and no more than any other league.)

I have the new map device that tracks content and it took me 289 abyss's to get the 5/5 Abyssal depths achievement.

I tried 3 different atlas tree configs for it as well. All with the increased chance to get abyssal depths. Some without the spire nodes and some without the 6 modifier gem nodes. Also excluded the nodes at the top right for longer chaining depths as well. None of this has changed the rate as far as I can tell.

It looks like there is either a bug in spawn rates or an undocumented change that massively nerf'd the chance to get them by about 200% I would guess.