I got an email back from Futurebit.  It turned out that one of the USB ports were faulty.  After changing the USB connections and restarting all of them together, all 3 machines are working fine now

I just received my Full Apollo Package for BTC mining on 8/23/2021.  I've set it up, and 2 of the 3 machines appear to be working just fine.  However, the 3rd machine just has a solid red light and doesn't do anything.  When I secure power and restart, the red light flashes quickly, and the fan will spin for a second.  After about 20 seconds, the red light turns solid and nothing else happens.  I've made sure all the cables are securely in place, but there is nothing else I can think of.  Is there something else I could try?  Or is this unit dead?