Describe the Bug

When a message with a file attachment is forwarded to another room or user, the file is not displayed on iOS and Android mobile apps — only the text part of the message is visible. The same forwarded message displays correctly in the web and desktop clients.

This affects all file types (PDF, images, documents, etc.).

Steps to Reproduce

1. Upload any file to a room (with or without accompanying text)
2. Forward that message to another room or user
3. Open the forwarded message on iOS or Android mobile app
4. The file attachment is missing — only text is visible

Expected Behavior

The forwarded message should display the file attachment the same way it does in web/desktop clients.

Actual Behavior

No response

Rocket.Chat Server Version

8.4.2

Rocket.Chat App Version

4.72.0.108804

Device Name

iPhone 12

OS Version

iOS 26.5

Additional Context

• Original (non-forwarded) messages with file attachments display correctly on both iOS and Android
• The issue is isolated to forwarded messages only
• Tested immediately after forwarding (rules out URL expiry)
• Reproduced on both iOS and Android
• Files are stored on external S3-compatible storage (DigitalOcean Spaces) with proxy enabled
• Verified server-side: proxy configuration, S3 storage, file access authorization — all working correctly