I calibrated my pH meter and tested it against strips, just to verify, and the readings were consistent. I also switched sources of lactic acid after failed adustments thinking perhaps the current batch was no good (although I had just used it last week with no issues), and there was no difference. I will check the pH today (24 hours after creation) and note any changes. Thank you - I will post the full formula as well to see what might be the other issues.