Purge on live server dont work

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Platform: PC
Game mode: privat live server (G-Portal)
Version: latest
Problem: Bug

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about purg on live server, it not work or is a big bug. another point i find out, if i enable build in game, on g-portal server in preference build is not enabled and otherwise

i was stoping server and disable build, after running server i check preferences and build was enabled

also if i switch build settings in game on server is always the reverse value

at the moment we can kill as many npc we like, we have no purge value

Picture of my preferences here:

Repro steps: