signMessage using Coinbase wallet extension on browser

[ghost]

I connected Coinbase wallet app and signed message using signer.signMessage() function.
But the result of ethers.utils.verifyMessage() returned different address from the signer's address.
Has anyone experienced this before?

[zemse]

Is it possible for you to generate a new test private key (for this testing) on the Coinbase wallet app, and sign a message and post the private key, message, and signature here?

[ghost]

Sorry, there's no way to get private key from Coinbase wallet.

[zemse]

I see does it allow you to enter a custom mnemonic? You can just generate a random one using ethers.Wallet.createRandom()