OP, you aren't Paul Cook are you?
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(if you are, I'm terribly terribly sorry...)
Was your naps yellow? I've let ACRB base soup sit for expended periods before pulling and gotten very yellow, oily waxgoo, and would ASSUME that similar transfer of fats would occur if acid bath was left for a time ,aiyc.
Yes, a mini a/b which is easier to perform than one may think- if I can do it, anyone can, lol, will clean your spice right up.
Sine experientia nihil sufficienter sciri potest -Roger Bacon
*γνῶθι σεαυτόν*