Help with intensity chase ( cue style )

Hi there.

Have created a colour chase using 3 sets of conventional fixtures.

Follow Cue 1 Red 1 Minute
Follow Cue 2 Green 1 Minute
Follow Cue 3 Blue 1 Minute

Have set the master of this playback to wrap at end of cue.

Problem is that when Cue 3 completes the cuelist is released dropping out the blue lights suddenly instead of X fading over a minute with the red lights.

What am I missing here? Any help much appreciated.
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