If you initially set the alpha to 0 with a time of 0, a new material is added. Subsequently, whne you go to tween the alpha back to 1 it does not tween the images alpha, it tweens the new materials alpha.
LeanTween.Alpha(image, 0, 0) // This looks like it is working
... /// later in the app
LeanTween.Alpha(image, 1, 0.5f); // This does not work, the images alpha remains at 0.`
If you initially set the alpha to 0 with a time of 0, a new material is added. Subsequently, whne you go to tween the alpha back to 1 it does not tween the images alpha, it tweens the new materials alpha.
LeanTween.Alpha(image,0, 0) // This looks like it is working... /// later in the app
LeanTween.Alpha(image, 1, 0.5f); // This does not work, the images alpha remains at 0.`