Auto-like button disappears when switching tabs on channel pages on YT and directly switching between artist pages on YTM

[Sv443]

For example when switching from "Home" to "Videos" on a channel homepage, the page will re-render and so the button will disappear until switching to yet another tab (and even then it sometimes disappears again due to a race condition).

[Sv443]

Same thing happens on YTM, when switching directly from one artist's page to another.