When i was trying to run multible dedicated servers i saw a wierd propblem.
If you have a server running on slot_0 and a server running on slot_1 the server with slot_1 will save on slot_0.
To reproduce this "bug" just start 1 dedicated and load slot_0 and then you start a second (diff port) and let it load slot_1.
After that you will see that the second server (slot_1) will save on slot_0.
I am using version 1.2.5 for the server.
PS: It would be cool if we are able to set our own slot_ numbers like: new [slot] [seed]
To my knowledge (forgot where I saw it) they have previously said it's not possible to run multiple servers yet since it always uses slot 0.