scientists land but hardly move at all. What am I possibly doing wrong? I have not changed anything. I would be grateful for any help.

First thing I would do is check if your NPC Spawn Plugin is up to date.
(currently in 2.5.5) You can find the settings for the NPCs in the data folder. 
For me it actually works so far - EXCEPT that I don't get the number of NPCs changed - 
@ Bazz3l - there are always 11 NPCs - not 10 as originally stated. I can not change this number !!!

kaffeebohne

First thing I would do is check if your NPC Spawn Plugin is up to date.
(currently in 2.5.5) You can find the settings for the NPCs in the data folder. 
For me it actually works so far - EXCEPT that I don't get the number of NPCs changed - 
@ Bazz3l - there are always 11 NPCs - not 10 as originally stated. I can not change this number !!!

Correct chinook has a limited mount points 11 in total.

What could be the reason that I cannot reduce the number?
If I set the number of NPCs to 8, it always stays at 11. ("guard spawn amount": 8,)
I can change everything else - just not the number of NPCs!?