Transaction Pending

After minting an NFT via the v3 REST API you may get a successful response body with a transaction hash.

However, when checking the transaction details on the blockchain you may get the following response:

Pending - "This txn hash was found in our secondary node and should be picked up by our indexer in a short while."  
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And minutes later:

"Sorry, We are unable to locate this TxnHash"

Good to know

This happens when the transaction didn’t make it through, most likely because you used the wrong nonce or wrong sequence index.

If you didn’t use a manual gas or nonce, the node dropped your transaction from the Mempool TTL for our nodes.