The lye/mix is not good to get in with the nap (consider it a 'poison'

micro drops held in suspension sometimes get in and tend to turn the xtals brown.
If it is a yellow goo..it is most likely plant fats/oils that are pulled into the nap along with the molecule.
This can be gotten rid of later with a Re-crystallization process (easy to do)
From your pic it looks OK
Just gather it together with all the snow globes and Re-X later when you have all your pulls done and dried.
If you 'know' that you got some in there and its the dark mix settling in small place you can
just pick out that area with your finger and not use it.
It is normal to get coloured spice with an STB Tek...Re-xing with clean it up and make it white.
Looking good though...a lot cleaner than my pulls..
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Reserve the right to change your mind at any given moment.