It could also just be bad execution on my side. I am not experienced with extractions and have limited chemistry knowledge.

I will see if I can reproduce it with the goo I got from my last extraction. I will also try extracting with more EA to see if I still get goo. I am wondering if whole cactus powder might be a reason as well. Or maybe I am stirring the paste with EA too strongly leading to excess water.

I should try the bomb and stir method and see if it behaves the same way.

I am surprised that the mescaline appears to stay in the EA when I get goo and does not precipitate in the goo itself.