Jetpack Sharing Icons Show Up On Some Posts But Not Others

WordPress 4.2.2, Jetpack 3.6.

Using custom posts. Using only one single.php for all custom posts.

Using code in functions.php and on single.php to change placement of icons.

“Show sharing buttons” is checked on all posts.

They show up fine on this post: https://lightyear.com/lightenteryeartainment/videos/rock-steady-the-roots-of-reggae/

Don’t show up on this post: https://lightyear.com/lightenteryeartainment/music/the-call-a-tribute-to-michael-been/

Can’t figure out why since both posts use the same single.php.

Any help would be greatly appreciated! Thank you.