Transaction not yet indexed

UQ6n4dw1FSkztqDWgv59fcpuQFDgop8xRZckuvc9GXGNPBemVh68mf5p8TKxNdofgpTfWQw3jDpM7pL2HBGPQfJ

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