"LInk twitch account" when MC/Twitch accounts are linked

Put the summary of the bug you're having here

What I expected to happen was...:
I do Link Acounts, and i restarted the Minecraft. And i press F6, but It says Can't do twitch broadcasting.

I really do Link accounts what do i do

Steps to Reproduce:
1. do link accounts
2.restart minecraft
3. can't do twitch broadcasting