It stands to reason that they weren't identical because if they were they would both have worked.
The thing separating you (in this case) and Amazon/Google/* is that they make sure their processes produce predictable outcomes that if they were to fail can be shutdown and the process can be redone until it yields the correct outcome.
Re:You Are Not Google (2017)
by user5994461 on Friday April 05, 2019 @02:45PM
(#19585749)
Unless they were identical running in the same directory and listening to the same port. First one to start won.
One worked, one didn't ¯\_(ツ)_/¯
That's when I gave up on servers, virtual or not