Deployment thumbnail shows "Error: Forbidden (403)" — live site works fine

Thank you for the timely reply.

Also I want to point out that other than the thumbnail problem, occasionally trying to navigate to the love site will return the same 403 error with x-vercel-mitigation: deny

Affected projects:

Website
URL_PROD: https://virtality.app/
URL_DEV: https://preview-web.virtality.app/
project_id: prj_rc5BFp0xvMFl0H4MRxagfDFgqqza

Console

URL_PROD: https://console.virtality.app/
URL_DEV: https://preview-console.virtality.app/
project_id: prj_3y92gys0Mpn3wRyxcIBTHmg1oWnS

Adminboard

URL_PROD: https://admin.virtality.app/
URL_DEV: https://preview-admin.virtality.app/
project_id: prj_xb4stgRZMWNqVvMbK49OENguQZjT

Service

URL_PROD: https://service.virtality.app/
URL_DEV: https://preview-service.virtality.app/
project_id: prj_826x7kqdRrMafKnyEgZNvQ8zkogq