Transaction not yet indexed

MFf543YW9MicYcL1cd4xEYfSjCPmEfxAQcfvt7p6Y9xNriy5AVMcSpUnZgNkMSo3BigUrwcbaPkJ6rs91VeHUby

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