The short answer
First determine which transaction failed. A route can contain an approval, source transfer, swap, or destination step, and the remedy depends on the failed action.
ONESWAP LEARN
What to Do When a Crypto Bridge Transaction Fails.
A practical checklist for investigating failed or reverted cross-chain transactions.
How it works
Open the transaction hash on the relevant blockchain explorer and inspect the status and error when available. Confirm that the failure occurred on the expected network.
Why it matters
Do not immediately retry a failed route without understanding the error. Check token allowance, gas balance, route availability and current quote conditions.
Practical takeaway
If the source transaction failed before funds left the wallet, the asset should normally remain under your control, but always verify the wallet balance and transaction state before trying again.