Could not upload file
Branding upload shows account.branding.errors.uploadFailed when the asset upload fails.
Why this happens
File too large/wrong type, network error, or branding disabled. Distinct from library file uploads (different messages).
Diagnose and fix
1. Use an allowed image type/size (User branding logo size limits).
2. Confirm branding entitlement; retry.
3. See User branding logo, favicon, and social.
4. If save of text settings fails after upload, see Could not save branding.