Transaction not yet indexed

2C21Qh2JkcUTP9aVD6XHovsETGKAzZrVPwsUqJP8JCiJTUsvyiMbDYkFcQx1srMC7x7fEdgtDHanMLNVx7mUwJm8

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