Transaction not yet indexed

NM6fTLEfKZaCT8sTC3Xnv78CtyR7AtpEmbGiiXmwghbAT3Z5gu6Vjk2rUxe6XS8v78CLwmoqH5vxkNwyhLRQk13

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