My Animation Is Stuck On A Frame

Hey, I am new to unity and when I am trying to make a character walk game. When I hit W, it is supposed to transition to the walking animation state. But for some reason, the animation stops playing and freezes at a particular frame on the animation state. So the player is stuck in that frame instead of playing the full walk animation. I mean when I hit W, it moves forward, but the Walking animation does not play fully, it gets stuck on a frame. So the character is stuck on that frame of the walk animation cycle in the game. alt text

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