Transaction not yet indexed

Ph21ccnfnWD6RBCpJPHdbMWZYmZnHUFwTE6nb7E6C6EwoMmNajE3U9KfPvmggu3fSnS1pVwAGcdt4YT3xYGddZ3

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