Timeline does not adjust to length of MP4 video

When I insert an MP4 video into Storyline 2, the timeline does not extend to the video's length (I just inserted a 120-second MP4 onto a 90-second slide, and it did not change).

 When the timeline is longer than the MP4, the video does not prevent me from dragging the timeline shorter than it.

I noticed that "Show Until End" is automatically selected when I insert it. Is there a setting to insert it at actual length?

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