Transaction not yet indexed

528xU4gbubwtfBopPzHaqQAZmdwRPEZzCoKnSPz1eGuY8b1BM3RqBcuGqDsLEWHGFZvmzN7ApwPAxaRoLStZwccR

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