Mandatory Abyss & Boss encounters count towards the 3 random map encounters.

Rugosa, 6 modifier waystone, 3 irradiated tablets all for nearly 200% waystone drop

Boss, Abyss, Strongbox

1 waystone, no valuable currency, 300% rarity build, full map clear.

3 more maps fully emptied and explored, blank t15 waystones, no precursor tablets.

the only change I've made is I removed points out of strongboxes to essence and now, as predicted, all 3 of those maps were Boss, Abyss and Essence.

still running 300% rare find build and still getting 1 waystone per map, no tablets.

First time seeing this but I had a map (Penatentiary) That didn't give me an Abyss encounter but instead was a Boss, a Wisp and a Strongbox. The boss itself is still taking away one of the 3 random encounters. This is actually the first map I've ever been on that didn't have an Abyss so I'm wondering if that's also a bug.