There has been no change, it looks as though you are not using a mid-grey default value. This will result in the colour effect layer having the default colour and applying this colour tint to the whole route, as per the screenshot provided.
You will want to use 0.5, 0.5, 0.5 as the default value. This will apply a neutral color effect to the whole route. The default of 0.5, 0.5, 0.5 is effectively an invisible tint which after being applied to the whole route, can be targeted and adjusted using the color tool option and selecting the color effect layer.