My first time trying to extract out of an acacia confusa ended up not so well for my first pull

I used the Lime/vinigar extraction tek q21q21 and everything seemed to be working out well until I took it out of the frige, the white things were melting, could it be because I did not remove all the naptha enough ? I will attach before and after pictures.. something noteworthy is that when i added the naptha before the freezer I had one small yellowish piece, can anyone identify what that is ?

My second pulls are in the freezer and they might be doing better.
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... some pictures for the second pull which is in the freezer do you think this will be good ?
Second pull



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Check the thread on this page about having trouble getting crystals from AC.
There is a lot of info in there about this, I just posted a similar problem.
It goes into better detail in that thread, but you should just need to do a re-xtal
and finish your evap in the freezer to keep xtal formation

by re-xtal you mean put in the freezer again ?

Thanks

Dissolve in a small amount of solvent and freezer precipitate, then dry quickly