Transaction not yet indexed

2tk51aSbwqt2LqmSXSNdLFx3d3jVSJJZRyuvPi8sP2Up4p7Q78DapqfMVFkzi7eSEdQ1fXRFfyPb1V7YaqdpBDX8

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