Microsoft Account Linking Fails on Nintendo Switch (2-BC6TA-0073 / 2-BC6TA-0029)

Subject: Minecraft Dungeons II – Microsoft Account Linking Fails on Nintendo Switch (2-BC6TA-0073 / 2-BC6TA-0029)

I'm unable to link a Microsoft account to Minecraft Dungeons II on Nintendo Switch.

The Microsoft authentication process succeeds on my phone, but the game subsequently displays "Linking Account Failed – Unable to sign in to the provided Microsoft account. Please go to Settings and try to link your account again."

Error codes:

• 2-BC6TA-0073

• 2-BC6TA-0029

Troubleshooting already performed:

• Tested two different Microsoft accounts, including an adult account.

• Tested on Nintendo Switch Lite and Nintendo Switch OLED.

• Restarted the Nintendo Switch.

• Confirmed the system clock is synchronized with the internet.

• Verified the game is running the latest available software.

• Tested both home Wi-Fi and a cellular mobile hotspot.

• Checked Minecraft on the Switch Lite and confirmed no Microsoft account is currently signed in.

• Repeated the linking process multiple times with the same failures.

Both Microsoft accounts successfully authenticate through the browser on my phone, but Minecraft Dungeons II fails to complete the linking process on the console.

I found an existing Mojang bug report, MCD2-243, describing error 2-BC6TA-0073.

Could you please confirm whether this is a known issue, whether there is a workaround, and whether the Microsoft accounts have any existing Nintendo account associations that could prevent linking?

Thank you.