So good news. I added the fresh ethyl acetate to the original jar and it crystallized. Same as starbob described. I am so happy. Difference between his approach and mine is that I added no crystal seeds.

So what happened:

-Got goo after adding citric acid.

-Decanted most of the EA and added ~80ml fresh EA. Goo turns white and sticky (Elmer glue).

-Let it sit for another 24h. Decant EA again and add fresh EA.

-Decant EA after another 24h and let glue dry. All the 3 different EA's are combined.

-Nothing happens to the glue but the combined EA starts crystallizing.

This makes me wonder if I used too little EA in total. My extracts are really dark green. Difficult to see through but definitely clear. Maybe adding EA to it to make it diluted could help.

I also did another try on 50g powder. No debris and clean extract, used distilled water and lab grade anhydrous citric acid, but got goo again. I exchanged the EA now and will see if I can reproduce the previously described acquired crystals.

I still have some powder left and will try an extraction by using more EA to get a less dark green extract and see if I still get goo.