Transaction not yet indexed

2a21HSmK6PqusuAAmdqSC5J2SiFh5XeJeZQaswVNTSdZU6JBYDzGRY3knozTkNQNd6Z77xpHPtzM5rYR2TR4AJA7

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