Transaction not yet indexed

MkBUHCDiME1EAC4aKc5KuKa13UfxUUDS8V2EF3fVcF4D3DYFi3FyYBK3fhe3ZaiEh8jemKT5vEt7Bqa3CD1Yz59

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