150 gr of ACRB using q21q21 tek yielded 1.2 grams after four pulls with heptane.

It was mostly fluffy white, but there was a bit of goop, do I decided to do a reX.

This yielded <500 mg of yellow, gunky, sticky stuff. I was much better off not reXing.

Very frustrated and pissed at the moment.

I've done this before with acacia and had decent results. I don't understand what happened this time. :

What was the cleaning procedure?

There are a few.

Some defat (wash with NPS during acid phase)

Some just re-x.

Yes I know that.. but in this particular case

ReX only.

Pulls were dissolved in Warm heptane. The heptane went into the freezer in a glass pan.

I've done this before with normal results.

I would try to reX again. And also do a pull from the last reX. I dont know if you are using soda or not.. But you could try that as well.