Transaction not yet indexed

mfmYN6EB6pf2g5XMVMujSmWLR4xM1iwTSRGLUkLFLgpMEchTAUqBSokZwChT7XsmWneZzy7vC2VpdSmrAFkZp21

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