No effect after Lumecca patch test

I done a lumecca patch test before treatment on a very fair freckles arms and this happen : During : I feel absolutely nothing, no rubber band snap, no “pop”, nothing. Immediately after, no redness on my skin, absolutely like nothing just happen. The day after, the same… and no change My skin like exactly the same, no spot getting darker no peppering, The flash rectangle of my arms is exactly the same as the rest of my arms (515 filter / 8 joule to 11) My doctor said that it’s the highest