Course Presentation Content Type Summary Slide' text is not visible on Safari

Detailed Steps to Reproduce the Bug:

1. Create a new "Course Presentation" content type in WordPress.

2. Add several slides with different types of content (text, images, video).

3. Add a "Summary" slide at the end of the presentation.

4. Add text to the Summary Slide's summary items.

5. Publish the content type on a WordPress post or page.

6. Open the page on a desktop using Safari.

7. Navigate to the final slide (the Summary Slide).

8. The summary text does not display; the background is visible, but the text is not. The "Retry" and "Show Solutions" buttons are also missing.

2. Platform and Version:

• Platform: WordPress 6.3.1

• H5P Plugin Version: 1.25.0

• H5P Content Type and Version: Course Presentation 1.25.1

3. Environment Details:

• Device: Desktop

• Browser: Safari Version 17.0 (18616.1.27.111.22, 18616)

4. Errors:

• Browser Console Error: No errors or warnings are logged in the Safari console when the bug occurs.

• PHP Errors: No PHP errors were logged.

5. Screenshots and Visuals:

6. Recent Changes:

• Environment: No recent changes to WordPress plugins, themes, or core.

• Browser: A new Safari extension for a password manager was installed a week ago, but the issue seems unrelated as it persists even with the extension disabled. The bug started appearing approximately two days ago.