[MCPE-144902] JavaScript Error

If the size of the world exceeds 250MB gametest-related tasks will not run properly.

(There may be translation errors)

This is the manifest.json I entered

 {
    "format_version": 2,
    "header": {
        "name": "pack.name",
        "description": "pack.description",
        "uuid": "9e5420d7-e1cb-4213-b30b-39a88d9705f4",
        "min_engine_version": [1, 16, 100],
        "version": [1, 0, 0]
    },
    "modules": [{
            "description": "pack.description",
            "type": "data",
            "uuid": "3d2beb24-1be7-4b62-b8a7-7cd949d2ada8",
            "version": [1, 0, 0]
        },
        {
            "type": "javascript",
            "uuid": "4d37b624-a58d-449e-9653-0ae0b2610279",
            "entry": "scripts/main.js",
            "version": [1, 0, 0]
        }
    ],
   "dependencies": [{ 
           "uuid": "b26a4d4c-afdf-4690-88f8-931846312678",
            "version": [0, 1, 0]
        },
        {
            "uuid": "6f4b6893-1bb6-42fd-b458-7fa3d0c89616",
            "version": [0, 1, 0]
        }
    ]
 }

Then this is the script in scripts/mian.js

 import \{ Commands, World } from "mojang-minecraft"
 let test;
 World.events.beforeChat.subscribe((msg) => {
 if (msg.message == "hello") {
 test = "test success";
        Commands.run(`tellraw "${msg.sender.name}" \{"rawtext":[{"text":"${test}"}]}`, World.getDimension("overworld"))
 msg.message = `test '${msg.message}'`
     }
 })

If reproduce the chat window, it works like this in a world that is less than 250MB

-----------------------------------------------
exit
-----------------------------------------------
test success
<steve> test 'hello'
-----------------------------------------------

By the way, a world with more than 250MB is like this

-----------------------------------------------
exit
-----------------------------------------------
<steve> hello
-----------------------------------------------

At first I thought the script was not running, but the script was obviously running.

The proof was this when I removed the conditional statement and the commands.run function and made it like this:

 import \{ Commands, World } from "mojang-minecraft"
 let test;
 World.events.beforeChat.subscribe((msg) => {
 msg.message = `test '${msg.message}'`
 })

-----------------------------------------------
exit
-----------------------------------------------
<steve> test 'hello'
<steve> test 'hi'
<steve> test 'a'
<steve> test 'b'
-----------------------------------------------

This time I tried to remove only the commands.run function

 import \{ Commands, World } from "mojang-minecraft"
 let test;
 World.events.beforeChat.subscribe((msg) => {
     if (msg.message == "hello") msg.message = `test '${msg.message}'`
 })

The result was

-----------------------------------------------
exit
-----------------------------------------------
<steve> test 'hello'
<steve> hi
<steve> a
<steve> b
-----------------------------------------------

This time I tried using only the commands.run function

 import \{ Commands, World } from "mojang-minecraft"
 let test;
 World.events.beforeChat.subscribe((msg) => {
     Commands.run(`tellraw "${msg.sender.name}" \{"rawtext":[{"text":"test"}]}`, World.getDimension("overworld"))
 })

The result was

-----------------------------------------------
exit
-----------------------------------------------
<steve> hello
<steve> hi
<steve> a
<steve> b
-----------------------------------------------

nothing happened

(I wish I could delete the bug report.)