Server.properties online-mode=true cannot be modified

[enix_lin]

OS Name/Version:Windows 10

Product Name/Version:AMP Release “Decadeus”
v2.4.5.4, built 01/07/2023 16:10

Problem Description:
server.properties online-mode=true cannot be modified

So when the official verification server is offline, do you want to give up AMP and start the official jar?
Can the official built-in option not be changed?

https://www.spigotmc.org/wiki/bungeecord-installation/#post-installation

DATA CONSISTENCY WITH UUIDS & IP FORWARDING:
To support online-mode UUIDs, name changes, and IP bans, enable ip_forward: true in BungeeCord’s config.yml . If you don’t, serious data inconsistencies will occur. Note: you still need to set online-mode to false in the server.properties files of your servers.
???

[Mike]

If you are using a Proxy, you need to disable Standalone mode in AMP in the Minecraft configuration to allow proxies to connect.