Been trying to get unreal dedicated servers up for a few days, but have been running into a lot of issues. It seems there are quite a few other people that have similar issues for a couple years now, but no solutions.
Is 64 bit simply not supported? The 65 bit steamclient.so just crashes.
I have the same problem as this guy.
Not sure if this is related, but i had an error with a macro redefinition on the steam linux build. I fixed by discarding the previous definition.
My blog post on this