I received my Z9 Mini today and I'm happy to say it is up and running.  Looking at Vosk's video, in the Antminer he was seeing 11,415 Discarded (shares?).  I am seeing the same thing and was curious what this is and if it is something to worry about or that needs to be addressed.  What does "Discarded" signify?  This is different than rejected.  Should I be concerned?