Motion name not displayed in Animator Override Controller

Animator Override Controller and set a controller named EnemyUnitController.
Three motion names are specified for the EnemyUnitController: “Mutant Punch,” “Mutant Punch 0,” and “KickPunch.

However, only one “Mutant Punch” appears in the Animator Override Controller.

This screenshot does a search, so there is no possibility of missing it.
Why is this? I couldn’t figure it out by looking at the documentation.

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