Heart of the UnderWellming

Anyone else really struggling getting Rogue Exiles spawn on Abysses?
Is it bugged?

I have aligned my Atlas to increase Rogue Exile chance.
I am using three Rogue Exile Precursors.
I am farming Abyss Maps and sometimes even use Overrun Waystones.

I farmed around 50 maps like this. I had multiple Rogue Exiles standing on Abysses not being ressurected.

What is going on, how do people get all the HotWs, since there are plenty on trade?