Transaction not yet indexed

5C21FYkbBDi5AeKk5MbFxKLvSV4i5s8fGFyAwAQVT115B5yBE4cGsKCSMYJ1WKFcrbSt9vgK4M4BHXcGh48XY8ra

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