If statements don't check current condition.

[AlexSchirack]

Conditional if statements check condition only at start not while running.

[royd2023]

So the if does work, but when in a loop, the QueueManager doesn't reset the commands.
Consider the example, we have candies in order (shapes are irrelevant): green, red, blue.

Consider the code:

3 times
if isBlue()
  moveDown
  moveLeft
  moveLeft
  dumpCandy
end

if isRed()
  moveDown
  moveRight
  moveRight
  dumpCandy
end

if isGreen()
  moveDown
  moveDown
  dumpCandy
end
end

Since the first candy is green, the if isGreen() is true and QueueManager queues the commands moveDown, moveDown, dumpCandy. But when the next candy, in this case red candy arrives, since QueueManager queues the same commands because of the loop, red candy moves down and ignores the if isRed() conditional. This is incorrect behavior.