UnVaultHelp Center

Why did my transaction fail?

Updated September 21, 2026

A failed transaction is rejected by the blockchain; you pay gas but nothing else changes. Common causes:

  • Someone else filled the listing or offer first.
  • Pool price moved. Pool quotes change with every trade; a quote is not locked until your transaction confirms.
  • Not enough native currency for gas, or a gas limit set too low in your wallet.
  • Wrong network selected in your wallet.
  • Listing cancelled or expired between page load and confirmation.
  • Missing token approval for an offer or a token-priced listing.
  • Transfer blocked by the collection's transfer validator, for example when a collection restricts which operators may move its items.

Check the transaction on the block explorer (the failure reason is shown there), refresh the page, and try again. If a cross-chain payment failed, use Get my funds back on the status view. If a transaction is stuck as pending, your wallet lets you speed it up or cancel it.