AnimNotifyState called NotifyBegin every frame when i called Montage_Pause and Montage_Resume

AnimNotifyState called NotifyBegin every frame when i called Montage_Pause and Montage_Resume.

if AnimLength = 10, when Anim = 1, Pause 1s, then play start 2s(ingore 1s-2s).

AnimNotifyState(0s-10s), but when i pause montage, AnimNotifyState will called NotifyBegin every frame, look like spawn every frame.

who can help me, thanks.