Transaction not yet indexed

21MkL1tA59sh5WUUuqVm6c7xvq83vCubCRDag3AFq5CSAfLRxmwEamS4fr7CPmTjbEyUcW9Ru9ei5jvzwKUHT4d1

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