A few questions since I don't know what your process is...
Are you dry washing or water washing?
Do you do any actual measurable soap tests or just a "shake em up" with water to guess if it's free of soap?
What did the oil titrate at when you started your batch, and how much glycerin did you end up with? Also, how large was your batch and how much methanol did you use?
You don't have to change your process for the oil to change, or the conditions for that matter either