Missing Icons Activity App OwnCloud

[BrainStorm001]

Steps to reproduce

1. Log into OwnCloud with account in admin group.
2. Go to and click on Activity
3. In activity I see that I have uploaded some muisic / .mp3 files and PDF's etc
4. preview music icons are not showing, they are broken when you log in and check Activity

Expected behaviour

The preview icons should display

Actual behaviour

broken little icon squares, now just empty squares. This happens when you click on the Activity App in owncloud.

Server configuration

Linus Debian:

Web server:
Apache

Database:
Not sure

PHP version:
PHP 7.4.33

ownCloud version: (see ownCloud admin page)
version 10.13.4.1

Updated from an older ownCloud or fresh install:
Fresh install, less than a week

Where did you install ownCloud from:
Linode.com

Signing status (ownCloud 9.0 and above):

Login as admin user into your ownCloud and access 
http://example.com/index.php/settings/integrity/failed 
paste the results into https://gist.github.com/ and puth the link here.

No errors found

The content of config/config.php:

Log in to the web-UI with an administrator account and click on
'admin' -> 'Generate Config Report' -> 'Download ownCloud config report'
This report includes the config.php settings, the list of activated apps
and other details in a well sanitized form.


### Steps to reproduce
1. Log into OwnCloud with account in admin group.
2. Go to and click on Activity
3. In activity I see that I have uploaded some muisic / .mp3 files
4. preview music icons are not showing, they are broken 

### Expected behaviour
The preview icons should display

### Actual behaviour
broken little icon squares

### Server configuration
**Linus Debian**:

**Web server:**
Apache

**Database:**
SQL

**PHP version:**
PHP 7.4.33

**ownCloud version:** (see ownCloud admin page)
version	10.13.4.1

**Updated from an older ownCloud or fresh install:**
Fresh install, less than a week 

**Where did you install ownCloud from:**
Linode.com

**Signing status (ownCloud 9.0 and above):**

Login as admin user into your ownCloud and access
http://example.com/index.php/settings/integrity/failed
paste the results into https://gist.github.com/ and puth the link here.

No errors have been found


**The content of config/config.php:**

         
or 

If you have access to your command line run e.g.:
sudo -u www-data php occ config:list system
from within your ownCloud installation folder

root@*******:/var/www/owncloud# sudo -u www-data php occ config:list
{
    "system": {
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "localhost",
            "cloud.********",
            "1***.***.***.***"
        ],
        "datadirectory": "\/var\/www\/owncloud\/data",
        "overwrite.cli.url": "http:\/\/localhost",
        "dbtype": "mysql",
        "version": "10.13.4.1",
        "dbname": "ownclouddb",
        "dbconnectionstring": "",
        "dbhost": "localhost",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "allow_user_to_change_mail_address": "",
        "logtimezone": "UTC",
        "apps_paths": [
            {
                "path": "\/var\/www\/owncloud\/apps",
                "url": "\/apps",
                "writable": false
            },
            {
                "path": "\/var\/www\/owncloud\/apps-external",
                "url": "\/apps-external",
                "writable": true
            }
        ],
        "installed": true,
        "instanceid": "oca9qzd0th0y",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpmode": "smtp",
        "mail_smtpauthtype": "LOGIN",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauth": 1,
        "mail_smtpport": "25",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***"
    },
    "apps": {
        "activity": {
            "enabled": "yes",
            "installed_version": "2.7.2",
            "types": "filesystem"
        },
        "backgroundjob": {
            "lastjob": "10"
        },
        "brute_force_protection": {
            "brute_force_protection_ban_period": "300",
            "brute_force_protection_fail_tolerance": "3",
            "brute_force_protection_time_threshold": "45",
            "enabled": "yes",
            "installed_version": "1.3.0",
            "signed": "true",
            "types": "prelogin"
        },
        "calendar": {
            "enabled": "yes",
            "installed_version": "2.0.0",
            "signed": "true",
            "types": ""
        },
        "comments": {
            "enabled": "yes",
            "installed_version": "0.3.0",
            "types": "logging,dav"
        },
        "configreport": {
            "enabled": "yes",
            "installed_version": "0.2.2",
            "types": "filesystem"
        },
        "core": {
            "enforce_2fa": "yes",
            "first_install_version": "10.13.4.1",
            "installedat": "1706421128.6451",
            "lastcron": "1706746219",
            "lastupdateResult": "[]",
            "lastupdatedat": "1706745056",
            "oc.integritycheck.checker": "[]",
            "public_files": "files_sharing\/public.php",
            "public_webdav": "dav\/appinfo\/v1\/publicwebdav.php",
            "shareapi_default_expire_date_remote_share": "yes",
            "shareapi_default_expire_date_user_share": "yes",
            "shareapi_expire_after_n_days_remote_share": "10",
            "shareapi_expire_after_n_days_user_share": "10"
        },
        "dav": {
            "enabled": "yes",
            "installed_version": "0.7.0",
            "types": "filesystem"
        },
        "diagnostics": {
            "enabled": "yes",
            "installed_version": "0.2.0",
            "types": "authentication"
        },
        "drawio": {
            "enabled": "yes",
            "installed_version": "1.0.1",
            "signed": "true",
            "types": ""
        },
        "federatedfilesharing": {
            "enabled": "yes",
            "installed_version": "0.5.0",
            "types": "filesystem"
        },
        "federation": {
            "enabled": "yes",
            "installed_version": "0.1.0",
            "types": "authentication"
        },
        "files": {
            "cronjob_scan_files": "500",
            "enabled": "yes",
            "installed_version": "1.6.0",
            "types": "filesystem"
        },
        "files_external": {
            "enabled": "yes",
            "installed_version": "0.9.0",
            "types": "filesystem"
        },
        "files_mediaviewer": {
            "enabled": "yes",
            "installed_version": "1.0.5",
            "types": ""
        },
        "files_pdfviewer": {
            "enabled": "yes",
            "installed_version": "1.0.2",
            "signed": "true",
            "types": ""
        },
        "files_sharing": {
            "enabled": "yes",
            "installed_version": "0.14.0",
            "types": "filesystem"
        },
        "files_texteditor": {
            "enabled": "yes",
            "installed_version": "2.6.1",
            "types": ""
        },
        "files_trashbin": {
            "enabled": "yes",
            "installed_version": "0.9.1",
            "types": "filesystem"
        },
        "files_versions": {
            "enabled": "yes",
            "installed_version": "1.3.0",
            "types": "filesystem"
        },
        "firstrunwizard": {
            "enabled": "yes",
            "installed_version": "1.3.0",
            "types": ""
        },
        "gallery": {
            "enabled": "yes",
            "installed_version": "16.1.2",
            "signed": "true",
            "types": ""
        },
        "market": {
            "enabled": "yes",
            "files_pdfviewer": "1.0.2",
            "installed_version": "0.8.0",
            "templateeditor": "0.5.0",
            "types": ""
        },
        "music": {
            "enabled": "yes",
            "installed_version": "1.10.0",
            "signed": "true",
            "types": "filesystem"
        },
        "notifications": {
            "enabled": "yes",
            "installed_version": "0.6.0",
            "types": "logging"
        },
        "oauth2": {
            "enabled": "yes",
            "installed_version": "0.6.1",
            "signed": "true",
            "types": "authentication"
        },
        "provisioning_api": {
            "enabled": "yes",
            "installed_version": "0.5.0",
            "types": "prevent_group_restriction"
        },
        "systemtags": {
            "enabled": "yes",
            "installed_version": "0.3.0",
            "types": "logging"
        },
        "templateeditor": {
            "enabled": "yes",
            "installed_version": "0.5.0",
            "signed": "true",
            "types": ""
        },
        "twofactor_totp": {
            "enabled": "yes",
            "installed_version": "0.9.0",
            "signed": "true",
            "types": ""
        },
        "updatenotification": {
            "enabled": "yes",
            "installed_version": "0.2.1",
            "types": ""
        }
    }
}
root@tmadness:/var/www/owncloud#

*ATTENTION:* Do not post your config.php file in public as is. Please use one of the above
methods whenever possible. Both, the generated reports from the web-ui and from occ config:list
consistently remove sensitive data. You still may want to review the report before sending.
If done manually then it is critical for your own privacy to dilligently
remove *all* host names, passwords, usernames, salts and other credentials before posting.
You should assume that attackers find such information and will use them against your systems.

List of activated apps:

If you have access to your command line run e.g.:
sudo -u www-data php occ app:list
from within your ownCloud installation folder.

Are you using external storage, if yes which one: local/smb/sftp/...
No

Are you using encryption: yes/no
No

Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...
No

Client configuration

Browser:

Chrome or Edge

Operating system:

Windows 11

Logs

Web server error log