Bug with Rem, the second skill goes on CD, but does not stick to the hero.

[aleksei.lisitsin1]

Match ID: 66394347
Time: 14:55-15:00

I also attached a video of this moment.

Sometimes noticed this bug in games about players I watch.

 

[JoeyLemons]

I also thought this was a bug before I realized you can cancel tag-along during the attach by pressing 2 again, so if you're mashing 2 trying to find a tag-along target you'll cancel it if you're not careful, which I'd be willing to bet happened here.