Changing components not showing up in app

Start by reproducing the issue with the sf lightning dev app --device-type desktop -n Sales command and the Hello World LWC component. Trace the update reported for helloWorld.js in the local development server logs, then verify that changing "World" to "Sunshine" appears in the live preview.

Summary

Changing a LWC component is not creating visible changes.

Steps To Reproduce:

1. Create the Hello World LWC Component, and follow all the steps.
2. Confirm the component is on the Sales page.
   
3. Start the local development server: SF_LOG_LEVEL=30 sf lightning dev app --device-type desktop -n Sales
4. Edit helloWorld.js to change "World" to "Sunshine"
5. Confirm from the logs that the plugin has noticed the change:

tail -f ~/.sf/sf-2025-03-13.log
{"level":30,"time":1741886202203,"name":"sf:AuthInfo","msg":"Returning fields for a connection using OAuth config."}
{"level":30,"time":1741886202599,"name":"sf:core:config","msg":"Key local-web-server-identity-data already exists in allowedProperties, skipping."}
{"level":30,"time":1741886202599,"name":"sf:core:config","msg":"Key local-dev-server-certificate-data already exists in allowedProperties, skipping."}
{"level":30,"time":1741886202599,"name":"sf:core:config","msg":"Key local-dev-server-port already exists in allowedProperties, skipping."}
{"level":30,"time":1741886202599,"name":"sf:core:config","msg":"Key local-dev-server-workspace already exists in allowedProperties, skipping."}
{"level":30,"time":1741886202747,"name":"sf:LightningDevApp","msg":"[LWC Dev Server] LWC Dev Server started at port:8081"}
{"level":30,"time":1741886202846,"name":"sf:oclif:AuthInfo","msg":"Returning fields for a connection using OAuth config."}
{"level":30,"time":1741886202850,"name":"sf:oclif:AuthInfo","msg":"Returning fields for a connection using OAuth config."}
{"level":30,"time":1741886202859,"name":"sf:oclif:AuthInfo","msg":"Returning fields for a connection using OAuth config."}
{"level":30,"time":1741886202862,"name":"sf:oclif:AuthInfo","msg":"Returning fields for a connection using OAuth config."}
{"level":30,"time":1741886263857,"name":"sf:LightningDevApp","msg":"[LWC Dev Server] File 'helloWorld.js' modified - updating."}

6. Go to the live update website and see that the component still says "Hello World" not "Hello Sunshine".

Expected Result

In the live preview, it should have changed the value to "Hello Sunshine"

Actual Result

There was not change to the LWC.

Additional Information

System Information

SF CLI:

shell: zsh

{
  "architecture": "darwin-arm64",
  "cliVersion": "@salesforce/cli/2.78.3",
  "nodeVersion": "node-v22.13.0",
  "osVersion": "Darwin 24.3.0",
  "rootPath": "/usr/local/lib/sf",
  "shell": "zsh",
  "pluginVersions": [
    "@oclif/plugin-autocomplete 3.2.21 (core)",
    "@oclif/plugin-commands 4.1.20 (core)",
    "@oclif/plugin-help 6.2.25 (core)",
    "@oclif/plugin-not-found 3.2.40 (core)",
    "@oclif/plugin-plugins 5.4.32 (core)",
    "@oclif/plugin-search 1.2.21 (core)",
    "@oclif/plugin-update 4.6.31 (core)",
    "@oclif/plugin-version 2.2.23 (core)",
    "@oclif/plugin-warn-if-update-available 3.1.33 (core)",
    "@oclif/plugin-which 3.2.29 (core)",
    "@salesforce/cli 2.78.3 (core)",
    "apex 3.6.8 (core)",
    "api 1.3.3 (core)",
    "auth 3.6.94 (core)",
    "data 4.0.11 (core)",
    "deploy-retrieve 3.20.0 (core)",
    "info 3.4.39 (core)",
    "lightning-dev 2.10.3 (user) published 9 days ago (Mon Mar 03 2025)",
    "limits 3.3.46 (core)",
    "marketplace 1.3.7 (core)",
    "org 5.2.32 (core)",
    "packaging 2.9.17 (core)",
    "schema 3.3.50 (core)",
    "settings 2.4.16 (core)",
    "sobject 1.4.50 (core)",
    "telemetry 3.6.33 (core)",
    "templates 56.3.38 (core)",
    "trust 3.7.65 (core)",
    "user 3.6.9 (core)"
  ]
}

OS: Mac OS, M1