New Minecraft launcher won't connect since I changed my main alias from my Microsoft account.

No problem, my friend. I'll keep going until I fully understand and am able to provide the best answer possible for your case.

Just some questions to better understand:

- When Minecraft stopped working, were you still using your Mojang account to sign in to it or were you already signing in with a Microsoft account? And this issue happened right after you changed your Microsoft account primary alias?

- You purchased Minecraft with a Mojang account, before the migration, right?

- What version of Minecraft did you purchase? Minecraft Java or Minecraft for Windows?

- And did you purchase Minecraft from the Microsoft store?

Waiting for your follow up!

Ok. Let's say I have 4 E-Mail adresses. 1, 2, 3, and 4. The Mojang account was created with E-Mail 1 and the Microsoft account also with E-Mail 1. But I had also a different Microsoft account with E-Mail 2. Once I changed the Microsoft account with E-Mail 1 to E-Mail 3. And then the Microsoft account with E-Mail 2 to E-Mail 1. After that I realised that Minecraft does't work with E-Mail 1. Then I remembered that I had a Mojang account with E-Mail 1 so I migrated this Mojang account to an another Microsoft account with E-Mail 4. I originally owned Minecraft with the Microsoft account with E-Mail 2(Now 1) and with the Mojang account with E-Mail 1(Now 4)

I'm sorry that it's really complicated.

When Minecraft stopped working, I used my Microsoft account. And this issue happened after I changed my main alias from E-Mail 2 to E-Mail 1. I can play Minecraft if I log in with my E-Mail 2.

I purchased Minecraft on my Mojang account before the migration, but I don't use my mojang account and that Microsoft account that was migrated to.

With my Mojang account (E-Mail 1) migrated to Microsoft account (E-Mail 4) I bad the Java Edition. With my first Microsoft account (E-Mail 1, now 3) I had Minecraft Bedrock Edition. And with the other MIcrosoft account (E-Mail 2, now 1) I have both Java and Bedrock.

I purchased Minecraft Bedrock Edition on my Microsoft Account (E-Mail 1, now 3) from the Microsoft Store and I purchased Minecraft Bedrock Edition on my Microsoft account (E-Mail 2, now 1) from the Microsoft Store but the Java Edition I purchased from minecraft.net. On my Mojang account (E-Mail 1, now migrated to Microsoft Account with E-Mail 3) I bought Minecraft Java from minecraft.net.

Hello, Youchan3070. Thanks for reaching out. I'm Lucas, an Independent Advisor and a Microsoft user just like you. I'll be glad to help you out.

Would you please give me more information about your issue?

You changed your Microsoft account primary email address, but then you migrated the Mojang account to another Microsoft account? Is this correct?

I ask because there is no way to migrate a Mojang account that is already migrated to another Microsoft account.

Waiting for your kind reply.

i changed my primary alias got 2fa changed my password multiple times my microsoft account on website works fine but in the launcher or microsoft store it keeps giving me an error after changing my alias my minecraft launcher gives this error