Transaction not yet indexed

2Ujk51LYCHPreuB6CQKTkNV3f6eFFmCMs5FN7Q1TSTPwaNhkRSEfxNybfafnfuQ54fGJiSuUHENNHUXrX7RiT8Ds

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