Chatbox event "chat" won't work

[KantenDestroyer]

Describe

If you want to catch the messages in chat with a computer, it won't work.
The event from Chatbox don't work, but the event of the Player Detector work, i took a Video.
The code of Chatbox and Player Detector are similar.
Chatbox pastebin :

while true do
    local event, username, message, id, hidden = os.pullEvent("chat")
    print("event: ".. event)
    print("username: ".. username)
    print("message; ".. message)
    print("uuid: ".. id)
    print("isHidden: ".. hidden)
end

PlayerDetector pastebin :

while true do
    local event, username, device = os.pullEvent("playerClick")
    print("event: ".. event)
    print("name: "..username)
    print("device: ".. device)
end

Mod detail:

Modloader details:

Video:

TVTmCZU.-.Imgur.mp4

If i did something wrong, or i were stupid. Please tell me!

Steps to reproduce

1.place a Computer with a PlayerDetector Block and Chatbox Block (Look video).
2.for Chatbox download file and execute and test: pastebin get Ed5QpES5 chatbox.lua pastebin
3.for PlayerDetector download file and execute and test: pastebin get B8BVPNuD detector.lua pastebin

Multiplayer?

Yes

Version

Own compiled build.

Minecraft, Forge and maybe other related mods versions

NeoForge 21.1.115 Minecraft 1.21.1

Screenshots or Videos

https://imgur.com/a/GUGgnVt

Crashlog/log

No response

[SirEndii]

Can you test the chat event in single player?

[KantenDestroyer]

In single player it does work, on a server not.
I have checked the configs, everything is on default settings and i changed nothing.