[Bug]: Empty folders show `Pending` as size in Web UI

[Marcus1Pierce]

⚠️ 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

If a folder is empty, status in size always pending even when i run sudo -u www-data php occ files:scan --all

Steps to reproduce

1. Create a new folder or empty a folder.
2. Refresh Page.
3. Pending size show.

Expected behavior

Show 0B in folder size when folder is empty.

Installation method

Community Docker image

Nextcloud Server version

28

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.2

Web server

Other

Database engine version

PostgreSQL

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

Updated from a MINOR version (ex. 28.0.1 to 28.0.2)

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

{
    "system": {
        "htaccess.RewriteBase": "\/",
        "apps_paths": [
            {
                "path": "\/var\/www\/html\/apps",
                "url": "\/apps",
                "writable": false
            },
            {
                "path": "\/var\/www\/html\/custom_apps",
                "url": "\/custom_apps",
                "writable": true
            }
        ],
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "filelocking.enabled": true,
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "password": "***REMOVED SENSITIVE VALUE***",
            "port": 6379
        },
        "overwriteprotocol": "https",
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "nextcloud.example.co.id"
        ],
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "pgsql",
        "version": "28.0.8.1",
        "overwrite.cli.url": "https:\/\/nextcloud.example.co.id",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "default_phone_region": "ID",
        "default_locale": "id_ID",
        "trashbin_retention_obligation": "14, 31",
        "versions_retention_obligation": "7, 14",
        "remember_login_cookie_lifetime": 259200,
        "session_lifetime": 21600,
        "activity_expire_days": 30,
        "skeletondirectory": "",
        "loglevel": "2",
        "maintenance": false,
        "mail_smtpmode": "smtp",
        "mail_smtpsecure": "ssl",
        "mail_sendmailmode": "smtp",
        "mail_smtpauthtype": "PLAIN",
        "mail_smtpauth": 1,
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "465",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "tempdirectory": "\/tmp",
        "updatechecker": false,
        "force_language": "en",
        "quota_include_external_storage": false,
        "theme": "",
        "user_backends": [
            {
                "class": "\\OCA\\UserExternal\\IMAP",
                "arguments": [
                    "mail.example.co.id",
                    993,
                    "ssl",
                    "example.co.id",
                    true,
                    false
                ]
            }
        ],
        "app_install_overwrite": [
            "deck",
            "richdocuments",
            "spreed",
            "extract",
            "ldap_write_support",
            "groupfolders",
            "forms",
            "files_automatedtagging"
        ],
        "lost_password_link": "disabled",
        "encryption.legacy_format_support": false,
        "app.mail.attachment-size-limit": 20971520,
        "app.mail.background-sync-interval": 300,
        "app.mail.transport": "php-mail",
        "enabledPreviewProviders": [
            "OC\\Preview\\Imaginary",
            "OC\\Preview\\BMP",
            "OC\\Preview\\GIF",
            "OC\\Preview\\JPEG",
            "OC\\Preview\\MP3",
            "OC\\Preview\\TXT",
            "OC\\Preview\\MarkDown",
            "OC\\Preview\\OpenDocument",
            "OC\\Preview\\PNG",
            "OC\\Preview\\Krita",
            "OC\\Preview\\XBitmap",
            "OC\\Preview\\PDF"
        ],
        "preview_imaginary_url": "***REMOVED SENSITIVE VALUE***",
        "sort_groups_by_name": true,
        "maintenance_window_start": 1
    }
}

List of activated Apps

Enabled:
  - activity: 2.20.0
  - admin_audit: 1.18.0
  - assistant: 1.1.0
  - auto_groups: 1.5.3
  - bruteforcesettings: 2.8.0
  - calendar: 4.7.13
  - circles: 28.0.0
  - cloud_federation_api: 1.11.0
  - comments: 1.18.0
  - contacts: 5.5.3
  - contactsinteraction: 1.9.0
  - dav: 1.29.2
  - deck: 1.12.4
  - drawio: 3.0.2
  - external: 5.3.1
  - extract: 1.3.6
  - federatedfilesharing: 1.18.0
  - federation: 1.18.0
  - files: 2.0.0
  - files_accesscontrol: 1.18.1
  - files_antivirus: 5.5.7
  - files_automatedtagging: 1.18.0
  - files_external: 1.20.0
  - files_inotify: 0.2.1
  - files_pdfviewer: 2.9.0
  - files_reminders: 1.1.0
  - files_sharing: 1.20.0
  - files_trashbin: 1.18.0
  - files_versions: 1.21.0
  - firstrunwizard: 2.17.0
  - forms: 4.2.4
  - groupfolders: 16.0.7
  - integration_openai: 2.0.3
  - ldap_write_support: 1.10.0
  - logreader: 2.13.0
  - lookup_server_connector: 1.16.0
  - nextcloud_announcements: 1.17.0
  - notes: 4.10.1
  - notifications: 2.16.0
  - notify_push: 0.6.12
  - oauth2: 1.16.3
  - password_policy: 1.18.0
  - privacy: 1.12.0
  - provisioning_api: 1.18.0
  - quota_warning: 1.19.0
  - recommendations: 2.0.0
  - related_resources: 1.3.0
  - richdocuments: 8.3.8
  - serverinfo: 1.18.0
  - settings: 1.10.1
  - sharebymail: 1.18.0
  - snappymail: 2.36.4
  - spreed: 18.0.10
  - support: 1.11.1
  - survey_client: 1.16.0
  - suspicious_login: 6.0.0
  - systemtags: 1.18.0
  - text: 3.9.2
  - theming: 2.3.0
  - twofactor_backupcodes: 1.17.0
  - twofactor_totp: 10.0.0-beta.2
  - user_external: 3.3.0
  - user_ldap: 1.19.0
  - user_status: 1.8.1
  - viewer: 2.2.0
  - workflowengine: 2.10.0
Disabled:
  - announcementcenter: 6.8.1 (installed 6.8.1)
  - dashboard: 7.8.0 (installed 7.5.0)
  - encryption: 2.16.0 (installed 2.14.0)
  - mail: 3.7.5 (installed 3.7.5)
  - photos: 2.4.0 (installed 1.5.0)
  - updatenotification: 1.18.0 (installed 1.13.0)
  - user_saml: 6.2.0 (installed 6.2.0)
  - weather_status: 1.8.0 (installed 1.5.0)

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

Looks like no error related.

Additional info

Web server : Caddy v2
user-backends : External user authentication = IMAP

[Marcus1Pierce]

Example when folder have files.

Example when folder doesn't files.

[joshtrichards]

Forum report: https://help.nextcloud.com/t/empty-folders-listed-as-pending-in-web-ui/199007

[brtwrst]

Happens for me too

[solracsf]

Reproduced in v29.0.4

[starboerg]

Maybe related to #46047 and caused by #43787 . This patch introduced treating an empty directory listing as a "Storage not available" error.