Transaction not yet indexed

AB28QykN8yL3cXGSGbmrWSos5f36cN1UVpGFj57KZmqrn4x2KF6CPzoDXWsqQVoEioB5C6s42nobkwFxbF4ePFF

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