Transaction not yet indexed

51388bPqNmhWYjb8wkXE6kny56Ma1UM2fncv9NMVpop64mVmrk7jJpDP6F1FNdRkT8nJiZZNFcotirwJETSXBS36

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