Transaction not yet indexed

AMmTz3v4Cr3nboBig7ARxsKPpWKZ1UmPsYeEdN1FkobjEARWMcqsMnSso5sZ7Wyb9LpX3nRZxKafdrzAUBdB563

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.