I own Minecraft through Game Pass for PC.
I tried to login to Lunar Client with my Microdoft account, but it didn't work. It said "Authorization comleted" but it didn't log me in anyway. Same happened with Badlion Client.
Comments 2
You should report on their site:https://support.lunarclient.com
We do not support 3rd party clients on the official bug tracker. Contact lunar client support for further help.