Transaction not yet indexed

mkZZKMXE6CXMZijNrvWNkso5YvfvdoH8Ks8JMqiAW15Rd7j5xfjJdAaFYxkJcm2F9mNKxM4cS9MoT7yerENEmp2

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