Transaction not yet indexed

MELLFLsTq6MEbfXpGyGhZz21HSeWPNqRLTu65TX4DTFLpuV2UCUxe4HPgzq2SHiSyH7pLfYHbtbQcLvKceXRk7Y

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