Transaction not yet indexed

2Ub51jEn2pVh1p7eUeQLBfUtPjwZzwJTefy1vZHwmZRu2hd6fDVqN7CDBPgtLfyysvQu3JoqjvmbHWnbTT8MpF86

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