I’m tired 
I have two clusters Graylog with 3.1.2 and 3.2.4 version. all config is the same. in 3.1.2 timestamp is right but 3.2.4 is not !!?? timestamp field in 3.1.2 ver show with millisecond. according to the screenshot.
but 3.2.4 ver does not show.
in config all node both clusters root_timezone the same and system/overview is correct.
also, I have problem with sort timestamp yet.
What did I misunderstand?
What configuration have I forgotten?
Where is my mistake?
I’m really tired.
please …