[Bug]: iphone display error - empty content

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

thanks for the update in todays release

but so far no good

Steps to reproduce

1. open a .md file in nextcloud app
2. see empty content
3. visible details though

Expected behavior

see text esitor opening the md fil for edition (or preview)

Nextcloud Server version

28

Operating system

Debian/Ubuntu

PHP engine version

None

Web server

Nginx

Database engine version

None

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

No response

List of activated Apps

No response

Nextcloud Signing status

No response

Nextcloud Logs

No response

Additional info

Nc aio

Reproduce on an iPhone using the Nextcloud iOS app and a .md file on a Nextcloud Server 28 instance, following the listed steps. Trace the app's Markdown opening, editing, or preview path; no source file, test, logs, or configuration report is named, and done means the Markdown text is visible.