Microsoft Entra External ID customer tenant branding text gets automatically reset to default values

Issue Summary: In a Microsoft Entra External ID customer tenant, under:

Company Branding → Default sign-in experience → Text tab

I configured custom:

Sign-in page title

Sign-in page description

The changes are applied successfully at first and the default Microsoft text is replaced on the sign-in page.

However, after some time, the custom text gets automatically removed/reset and the default Microsoft title and description appear again without any manual changes.

Expected Behavior: The custom branding text configured in the Text tab should remain persistent until manually updated by an administrator.

Actual Behavior: The custom title and description are automatically cleared/reset after some time, causing the default Microsoft text to reappear on the sign-in page.

Environment:

• Microsoft Entra External ID (Customer tenant)

Default sign-in experience branding

Browser-based sign-in flow

Question: Is this a known bug or known limitation in Microsoft Entra External ID customer tenants?Issue Summary:

In a Microsoft Entra External ID external tenant, under:

Company Branding → Default sign-in experience → Text tab

I configured custom:

• Sign-in page title

Sign-in page description

The changes are applied successfully at first and the default Microsoft text is replaced on the sign-in page.

However, after some time, the custom text gets automatically removed/reset and the default Microsoft title and description appear again without any manual changes.

Expected Behavior:
The custom branding text configured in the Text tab should remain persistent until manually updated by an administrator.

Actual Behavior:
The custom title and description are automatically cleared/reset after some time, causing the default Microsoft text to reappear on the sign-in page.

Environment:

• Microsoft Entra External ID (external tenant)

Default sign-in experience branding

Browser-based sign-in flow

Question:
Is this a known bug or known limitation in Microsoft Entra External ID customer tenants?