Forbidden Flesh / Flame - Wildspeaker

FYI,

Forbidden Flesh / Flame for Wildspeaker / Warden - Experienced Herbalist is not allocating Boon of the First Ones.

These share a the same node pattern and hypothetically should function. This skill was altered during the patch, likely breaking it's functionality.

Reaaaaaaaaaally sad about this, limits the off meta odd ball things I can currently do.

I didn't get the "This skill was altered during the patch, likely breaking its functionality" part, but If you're reporting that Forbidden Flesh and Flame allocate original notables instead of corresponding alternative notables, this is intended https://www.pathofexile.com/forum/view-thread/3721171

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How will the Forbidden Flame and Flesh jewels work with these Ascendancy Classes?

They grant the original Ascendancy nodes for that base class. So if you are a
Harbinger you can get Occultist/Elementalist/Necromancer notables through Forbidden Flesh and Flame jewels.