Transaction not yet indexed

Mkkooio2RDMDAtVEiLkjesEh2kfd6Uu4uJ1zfNhL4aMJDCCxRVuMhtwPtT8gQfvsamYuRvUUbtyqaXBRSmYYf1e

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