After much trial and error I found a fix that worked for me.
I reset all of the XBox related apps including XBox Console Companion in add/remove programs.
Launched the XBox companion. Choose the old XBox Console Companion option underneath where it says Launch.
Open Minecraft and hopefully it will let you sign in. It worked for me.
I found that if I launched the new companion I got the Glowstone error.
James Clow
After much trial and error I found a fix that worked for me.
I reset all of the XBox related apps including XBox Console Companion in add/remove programs.
Launched the XBox companion. Choose the old XBox Console Companion option underneath where it says Launch.
Open Minecraft and hopefully it will let you sign in. It worked for me.
I found that if I launched the new companion I got the Glowstone error.