Transaction not yet indexed

1Uk5yw5uTe7Ff7QeF6KLYv2dAvU4Zkrczkd7eENEkjo521ikkQYAQJPXFWJuoSdX7LF7BsMNtZJyXGRZs7U1U6p

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