Transaction not yet indexed

MPn5MmRS2xDRabxrdkMy9yTFY2Z4VaNBGLRNsov8JYU2hMV3CJPiKUjNdRz5aFPC4XZerM5W74AfqAa4P5dA4Zq

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