Transaction not yet indexed

28DXYRMCGGHNmFpsoofYd2SLpXGdz4upp3XAXSqaQrDh7vya11FAmB6pxUVQghPdLYW87cpqfFNKyCg7q41aLpH1

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