The amp-video tag captures the drag input and doesn't allow the pane to change.

Visible at: http://amp-partners.appspot.com/carousel-video

Reproducible by:

• Embed amp-carousel
• Insert amp-video item
• Insert amp-youtube item
• Insert another amp-video item

Expected:

• Cycle through all videos and watch the correct one

Actual:

• Cycle through first item fine
• Attempt to cycle through amp-youtube and doesn't change item
  • Can't get out of the youtube item