Transaction not yet indexed

AMpkppF7JQSpaVpFnmUvzg2bFstFzA7VTzFLai7m7GBXFp5PXJL6nPyEXSoNiSU7TLoaaKw5Ky9BHhbB4KyK2Gh

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