Problem

The Children Display macro fails with an Unable to render

error if the specified parent page's title contains a colon symbol ( : ). This appears to be a recent regression, as the customer reports this was working correctly before June 19, 2025.

Environment

Chrome browser, Mac OS

Steps to Reproduce

1. Create a parent page with a colon in its title (e.g., "Test Parent: Page").
2. Create a child page under the parent page from step 1.
3. On a different, separate page, insert the "Children Display" macro.
4. In the macro settings, set the "Parent page" parameter to the title of the page created in step 1 ("Test Parent: Page").
5. Save and publish the page.

Expected Results

The Children Display macro should correctly identify the parent page and render a list of its child pages.

Actual Results

The macro fails to render. An error message is displayed on the page: Unable to render 'children.Not found: [Parent Page Title]'.

Workaround

Remove the colon ( : ) from the parent page's title or replace it with another character (e.g., a dash - ). After updating the title, the macro renders correctly.

Notes

The customer explicitly stated that this functionality worked as expected before June 19, 2025, which strongly suggests a recent regression. The error message indicates a failure in the page lookup mechanism when a colon is present in the title string, which may be related to other known issues like CONFCLOUD-75724.