Transaction not yet indexed

2u51CqSyTwHRfMkQRk6NQEYMWnSyVMH6SrPf9WbmufY3mL73EVKCxAPu8GucZrzDRdLRTN4pjJbVBGrLD8v21HHz

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