WPMU Theme sidebar acts weird sometimes

Hi,

I have noticed this bug couple of times but have not notified it before.

Sometimes when i am scrolling a post, the sidebar jumps up and down. I have attached a snap of it.

To replicate it, just click the link below. Scroll down little bit and then scroll back up.

This bug is appearing in Chrome (latest version).

https://premium.wpmudev.org/forums/topic/subscription-status-not-updating