If your #pi coins returned to your mining app from your #wallet🔥 , it's likely because you haven't completed the 2-factor authentication (2FA) requirement during the migration pending period, and Pi Network securely returned them. 

Here's a more detailed explanation: 

1. Migration Pending Period:

When you migrated your Pi to the Mainnet, there was a 14-day pending period.

2. 2FA Requirement:

During this period, Pi Network required users to complete 2FA for the security of their accounts and Pi.

3. Return to Mining App:

If you didn't complete the 2FA within the 14 days, Pi Network would have securely returned your Pi to your mining app.

$BTC