Transaction not yet indexed

21Sd6pe5wb1kbr7oMLLc9vgBVs6QoWUDhRsELqR5sbLCmmjeSzUrBLT4QuAjUGLjNvGPbNuTcZXUFfEiSPMLhB48

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