Transaction not yet indexed

5u88uV4P46MMMNuCKLPsQpzzgLYaqiUDtmfSTRq9NBXVM8HK9qkDmcANyDzsKG35TwbzUt1SJDE9ZhR3HsB4FDn7

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