[bug]: admin dashboard don't be open when upgrade version as minor

[Reaksa-Cambodia]

Bug Description

after upgrade from version 5.40 to 5.50 don't have error as in log and code base also. when run npm run develop is work and don't have error in log but when open dashboard is don't show just screen

Steps to Reproduce

I have follow scrip for upgrade version by document

• npx @strapi/upgrade minor --yes
• npm install
• npm run develop

Expected Behavior

i have ask AI and kapa in strapi AI document also is give me to fix like

• rm -rf node_modules package-lock.json
• rm -rf .strapi build dist .cache node_modules/.vite
• npm install
• npm run build
• npm run develop
  i have follow it but still error the same

Version

v5.40.0

Operating System

MacOS

Runtime Environment

Node.js

Logs

[2026-08-05 10:04:53.838] info: Strapi started successfully

[2026-08-05 10:04:54.776] http: GET /admin (46 ms) 200

[2026-08-05 10:05:03.373] http: GET / (12 ms) 302

[2026-08-05 10:05:03.389] http: GET /admin (11 ms) 200

[2026-08-05 10:05:31.409] http: GET /admin (15 ms) 200

[2026-08-05 10:05:35.550] http: GET /.well-known/appspecific/com.chrome.devtools.json (6 ms) 404

[2026-08-05 10:05:44.306] http: GET /.well-known/appspecific/com.chrome.devtools.json (4 ms) 404

Media

Confirmation Checklist

• I have checked the existing issues
• I agree to follow this project's Code of Conduct
• I would like to work on this issue