The body processes macronutrients in a certain order. Alcohol (the 4th but non essential macronutrient) is first on the list and all other macronutrients get put on the backburner until it’s been processed. And, people respond differently to different alcohols. So, it’s possible that the ketones were reduced in between the tests and got stuck lower (as ketone numbers fluctuate while the body uses them). The wine could have caused the excess ketone energy to be stored temporarily while the alcohol was being processed. It could have caused an insulin response high enough to cause ketones to be put into the waste cycle so they’d be eliminated from your body. And, the alcohol could have just interfered with the test in general.