Four checks when a Mantle bridge transfer stalls

A stalled Mantle bridge transfer is usually waiting on a transaction step, a withdrawal claim or a wallet balance display. Check the transaction on the network where it began before sending anything again.

Finding the unfinished step can save you from paying gas twice or mistaking a wallet display problem for a lost transfer.

The bridge moves assets between Ethereum and Mantle, and each direction has different steps and fees. This mantle bridge explainer covers the full flow; the checks below help identify where a transfer paused.

Did the transaction confirm on the source network?

Open the transaction hash in the explorer for the network you sent from, then check whether it is pending, successful or failed. A pending transaction has not completed its first step, so the bridge cannot process it yet.

If it failed, inspect the wallet’s error and confirm you had enough native currency for gas. For a deposit from Ethereum, that means ETH for the source transaction; an ERC-20 token may also need a separate approval transaction before the deposit.

Is the transfer a deposit or a withdrawal?

A deposit from Ethereum to Mantle and a withdrawal back to Ethereum do not finish the same way. The bridge’s History page can help you see the transfer status, while the relevant network explorer shows whether an on-chain step has completed.

For a withdrawal, a confirmed transaction on Mantle may be followed by a separate claim on Ethereum. Wait for the bridge to show that the claim is ready, then check that you have ETH on Ethereum for its gas fee; MNT is used to start the withdrawal on Mantle.

Did the funds arrive at the right address and token?

Compare the receiving address in the bridge record with the wallet you are checking, and switch that wallet to the destination network. A successful transfer can be hard to spot if the wallet is showing Ethereum while the funds arrived on Mantle, or vice versa.

The wallet may also fail to display a bridged token automatically. Check the token mapping through Mantle’s official bridge or documentation before importing a token contract; the displayed name alone is not enough to confirm that a token is the right asset.

What should you do before retrying?

Use the transaction status to choose the next step. A pending source transaction needs time or attention on that network; a confirmed withdrawal awaiting a claim needs the bridge’s claim step; a completed transfer with no visible balance calls for a network and token check.

• Keep the source and destination transaction hashes.
• Check the bridge History page and both relevant network explorers.
• Keep ETH for Ethereum transactions and MNT for Mantle transactions.
• Do not submit a duplicate transfer just because the wallet balance has not refreshed.

If the bridge and explorer disagree, use the official bridge support route and share the transaction hash, direction and wallet address there. Never give anyone your seed phrase or sign an unrelated transaction as a recovery step.