Card attachments not visible

[Dennis1993]

Describe the bug:
When a card is opened in the deck with a specific account and the "Attachments" tab is opened, no entries are displayed. This only happens with that particular account. Other accounts can view the attachments normally. Permissions and approvals have already been checked and tested at all levels.

To Reproduce:
Steps to reproduce the behavior:

1. Go to 'Deck'
2. Click on any 'Card'
3. Go to Attachments'
4. See error

Expected behavior:
Attachments that are displayed on other user accounts should also be displayed on the affected account.

Screenshots:

Client details:

• OS: Windows
• Browser: Edge
• Version: 145.0.3800.97
• Device: Desktop

Server details

Operating system:
Ubuntu 24.04 LTS
Web server:
Apache 2.4
Database:
MariaDB
PHP version:
8.4
Nextcloud version:
32.0.6

List of activated apps:

Enabled:
  - activity: 5.0.0
  - admin_audit: 1.22.0
  - bruteforcesettings: 5.0.0
  - calendar: 6.2.1
  - circles: 32.0.0
  - cloud_federation_api: 1.16.0
  - collectives: 4.0.0
  - comments: 1.22.0
  - contacts: 8.3.4
  - contactsinteraction: 1.13.1
  - dav: 1.34.2
  - deck: 1.16.3
  - drawio: 4.1.4
  - federatedfilesharing: 1.22.0
  - files: 2.4.0
  - files_downloadlimit: 5.0.0-dev.0
  - files_pdfviewer: 5.0.0
  - files_reminders: 1.5.0
  - files_sharing: 1.24.1
  - files_trashbin: 1.22.0
  - files_versions: 1.25.0
  - groupfolders: 20.1.12
  - logreader: 5.0.0
  - lookup_server_connector: 1.20.0
  - notifications: 5.0.0
  - notify_push: 1.3.0
  - oauth2: 1.20.0
  - photos: 5.0.0
  - polls: 8.6.3
  - profile: 1.1.0
  - provisioning_api: 1.22.0
  - related_resources: 3.0.0
  - richdocuments: 9.0.3
  - serverinfo: 4.0.0
  - settings: 1.15.1
  - sharebymail: 1.22.0
  - spreed: 22.0.9
  - systemtags: 1.22.0
  - text: 6.0.1
  - theming: 2.7.0
  - twofactor_backupcodes: 1.21.0
  - updatenotification: 1.22.0
  - user_ldap: 1.23.0
  - viewer: 5.0.0
  - webhook_listeners: 1.3.0
  - workflowengine: 2.14.0

Nextcloud configuration:

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "cloud.domain.de",
            "nco.domain.de",
            "0.0.0.0"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "32.0.6.1",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "default_phone_region": "DE",
        "maintenance_window_start": 1,
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpmode": "sendmail",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "loglevel": 3,
        "log.condition": {
            "apps": [
                "admin_audit"
            ]
        },
        "ldapIgnoreNamingRules": false,
        "forcessl": true,
        "theme": "",
        "lost_password_link": "disabled",
        "auth.webauthn.enabled": false,
        "maintenance": false,
        "trashbin_retention_obligation": "auto,7",
        "versions_retention_obligation": "auto,30",
        "ldapProviderFactory": "\\OCA\\User_LDAP\\LDAPProviderFactory",
        "overwriteprotocol": "https",
        "overwrite.cli.url": "https:\/\/cloud.domain.de",
        "skeletondirectory": "",
        "force_language": "de",
        "force_locale": "de_DE",
        "allow_user_to_change_display_name": false,
        "updater.release.channel": "stable",
        "encryption.key_storage_migrated": false,
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "mail_sendmailmode": "smtp",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "25",
        "filelocking.enabled": true,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 0
        },
        "app_install_overwrite": []
    }
}

Are you using an external user-backend, if yes which one:
ActiveDirectory