Transaction not yet indexed

JM66ykj16DQWG9s3tFShrJm2tva1xKTmUeYdDzFBFTjfvbz8a1DLppHLEytok8t539gVVDdjFMtyM1ApUCc8Ufv

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