Why does dark 32 enter before magenta 25?

It starts removing the broad space field while the short exhaust routes return quickly enough to make room for magenta.

What is the safest time to reveal the mystery card?

Open it after an orange or yellow route returns and before committing dark 36 or another purple 30 stack.

Colony Flow! level guide

hard 8 colors

Launch the rocket clear with orange 34, yellow 18 and dark 32, then use short flame cards between the longer hull, window and space routes.

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Tap orange 34 and yellow 18 to start the exhaust, then add dark 32 for the surrounding space.
Wait for the orange lane to return before routing magenta 25 and cyan 24.
Send red 8/18 and purple 30 through separate holes as the fins and window ring expose.
Open the mystery card only with one hole free, then clear its revealed route before starting dark 36.
Alternate white 24/35 with cyan 19/24 and purple 28/30 as the hull opens around the circular window.
Use short orange 2/4/9, yellow 1/3/6 and red 6/8/17 cards between longer dark-space waves.
Finish the red nose, white upper hull and dark corner fragments, then wait for the final dark 5 route to clear.

Colors in this level:

Red, White, Cyan, Purple, Dark purple, Yellow, Orange, Magenta

Filling all five holes before the mystery reveal leaves its newly exposed color without a route.
Clearing the exhaust and stopping leaves the window ring, white hull and dark upper corners loaded.

Board notes 5 details

Layout: A red-and-white rocket sits in a dark-purple square with a cyan window, purple ring, yellow flame core and orange exhaust. Five empty holes face orange 34, magenta 25 and yellow 18; cyan 24, red 8, dark 32, purple 30 and a mystery card wait below.
Goal: Clear the exhaust and red fins, then remove the white hull, cyan-and-purple window, dark space field and final red nose cone.
Opening: Tap orange 34 and yellow 18, then dark 32; wait for the orange lane to return before adding magenta 25 and cyan 24.
Danger Zone: Dark 32/36 and purple 30 hold holes longer than the warm-color exhaust cards. Opening the mystery stack with a full tray strands its revealed color.
Mechanics: A compact rocket alternates short flame and fin cards with longer space waves before reversing into white hull and cyan-window cleanup.

Why does dark 32 enter before magenta 25?
It starts removing the broad space field while the short exhaust routes return quickly enough to make room for magenta.
What is the safest time to reveal the mystery card?
Open it after an orange or yellow route returns and before committing dark 36 or another purple 30 stack.