Birthday Calendar shows Reminders and birth years, but no names.

Steps to reproduce

1. Remove and re-create the birthday calendar through settings

2. Wait for Birthday Calendar to show up

3. Observe …

Expected behavior

I expect the birthdays for all contacts to show at minimum also the Name in addition to the birth year. Not just for newly created contacts.

Actual behavior

Birthdays only show up as a year (on the correct date):

HOWEVER

Newly created contacts will get proper birthday entries:

Calendar app version

5.2.0

CalDAV-clients used

n/a

Browser

Firefox 138.0a1

Client operating system

macOS 15.3.2 (24D81)

Server operating system

docker Image: nextcloud:31

Web server

None

Database engine version

PostgreSQL

PHP engine version

None

Nextcloud version

Nextcloud Hub 10 (31.0.0)

Updated from an older installed version or fresh install

Updated from an older version

List of activated apps

Enabled:
  - activity: 4.0.0
  - admin_audit: 1.21.0
  - app_api: 5.0.2
  - audioplayer: 3.4.1
  - bruteforcesettings: 4.0.0
  - calendar: 5.2.0
  - circles: 31.0.0-dev.0
  - cloud_federation_api: 1.14.0
  - comments: 1.21.0
  - contacts: 7.0.4
  - contactsinteraction: 1.12.0
  - dashboard: 7.11.0
  - dav: 1.33.0
  - deck: 1.15.0
  - extract: 1.3.6
  - federatedfilesharing: 1.21.0
  - federation: 1.21.0
  - files: 2.3.1
  - files_downloadlimit: 4.0.0
  - files_external: 1.23.0
  - files_markdown: 2.4.1
  - files_pdfviewer: 4.0.0
  - files_readmemd: 3.0.2
  - files_reminders: 1.4.0
  - files_sharing: 1.23.1
  - files_texteditor: 2.15.1
  - files_trashbin: 1.21.0
  - files_versions: 1.24.0
  - firstrunwizard: 4.0.0
  - forms: 5.0.4
  - gpxpod: 7.0.4
  - groupfolders: 19.0.4
  - integration_gitlab: 3.1.2
  - integration_mastodon: 3.1.1
  - logreader: 4.0.0
  - lookup_server_connector: 1.19.0
  - mail: 4.3.1
  - maps: 1.5.0
  - memories: 7.5.2
  - nextcloud_announcements: 3.0.0
  - notes: 4.11.0
  - notifications: 4.0.0
  - oauth2: 1.19.1
  - oidc: 1.5.0
  - password_policy: 3.0.0
  - photos: 4.0.0-dev.1
  - polls: 7.4.1
  - previewgenerator: 5.8.0
  - privacy: 3.0.0
  - profile: 1.0.0
  - provisioning_api: 1.21.0
  - recommendations: 4.0.0
  - related_resources: 2.0.0
  - richdocuments: 8.6.3
  - serverinfo: 3.0.0
  - settings: 1.14.0
  - sharebymail: 1.21.0
  - spreed: 21.0.1
  - support: 3.0.0
  - survey_client: 3.0.0
  - suspicious_login: 9.0.1
  - systemtags: 1.21.1
  - tables: 0.9.0
  - tasks: 0.16.1
  - text: 5.0.0
  - theming: 2.6.1
  - theming_customcss: 1.18.0
  - twofactor_backupcodes: 1.20.0
  - twofactor_totp: 13.0.0-dev.0
  - unsplash: 3.0.3
  - updatenotification: 1.21.0
  - user_ldap: 1.22.0
  - user_status: 1.11.0
  - viewer: 4.0.0
  - weather_status: 1.11.0
  - webhook_listeners: 1.2.0
  - whiteboard: 1.0.5
  - workflowengine: 2.13.0
Disabled:
  - drawio: 3.0.4 (installed 3.0.4)
  - encryption: 2.19.0
  - end_to_end_encryption: 1.17.0 (installed 1.17.0)
  - files_rightclick: 0.15.1 (installed 1.6.0)
  - solitaire: 1.0.0 (installed 1.0.0)
  - twofactor_nextcloud_notification: 5.0.0

Nextcloud configuration

{
    "system": {
        "htaccess.RewriteBase": "\/",
        "memcache.local": "\\OC\\Memcache\\APCu",
        "default_phone_region": "DE",
        "apps_paths": [
            {
                "path": "\/var\/www\/html\/apps",
                "url": "\/apps",
                "writable": false
            },
            {
                "path": "\/var\/www\/html\/custom_apps",
                "url": "\/custom_apps",
                "writable": true
            }
        ],
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": {
            "0": "***REMOVED SENSITIVE VALUE***",
            "2": "***REMOVED SENSITIVE VALUE***"
        },
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "forwarded_for_headers": [
            "X-Forwarded-For"
        ],
        "overwriteprotocol": "https",
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "pgsql",
        "version": "31.0.0.18",
        "overwrite.cli.url": "***REMOVED SENSITIVE VALUE***",
        "filelocking.enabled": true,
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 6379,
            "timeout": 0,
            "password": "***REMOVED SENSITIVE VALUE***"
        },
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "maintenance": false,
        "maintenance_window_start": 23,
        "theme": "",
        "loglevel": 0,
        "ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory",
        "app_install_overwrite": {
            "0": "drawio",
            "1": "richdocuments",
            "2": "files_markdown",
            "3": "extract",
            "5": "files_texteditor",
            "6": "unsplash",
            "7": "files_readmemd",
            "8": "maps"
        },
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpmode": "smtp",
        "mail_sendmailmode": "smtp",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauth": 1,
        "mail_smtpauthtype": "PLAIN",
        "mail_smtpsecure": "ssl",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "465",
        "htaccess.IgnoreFrontController": false,
        "enable_previews": true,
        "preview_max_x": 2048,
        "preview_max_y": 2048,
        "preview_max_memory": 1024,
        "enabledPreviewProviders": [
            "OC\\Preview\\Movie",
            "OC\\Preview\\PNG",
            "OC\\Preview\\JPEG",
            "OC\\Preview\\GIF",
            "OC\\Preview\\HEIC",
            "OC\\Preview\\BMP",
            "OC\\Preview\\XBitmap",
            "OC\\Preview\\MP3",
            "OC\\Preview\\MP4",
            "OC\\Preview\\TXT",
            "OC\\Preview\\MarkDown",
            "OC\\Preview\\PDF"
        ],
        "log_rotate_size": 5242880,
        "allow_local_remote_servers": true,
        "memories.db.triggers.fcu": true,
        "memories.exiftool": "\/var\/www\/html\/custom_apps\/memories\/bin-ext\/exiftool-amd64-glibc",
        "memories.vod.path": "\/var\/www\/html\/custom_apps\/memories\/bin-ext\/go-vod-amd64",
        "memories.vod.ffmpeg": "\/usr\/bin\/ffmpeg",
        "memories.vod.ffprobe": "\/usr\/bin\/ffprobe"
    }
}

Web server error log

Log file

Browser log

Additional info

I have also waited in case the birthday calendar "needs time to settle". But also a few days later the names do only show up for newly created contacts.

Start by reproducing the issue through the Calendar settings and comparing birthday entries for existing and newly created contacts. Trace the Birthday Calendar and contacts integration to find where names are assigned; done means birthdays for existing contacts display their names as well as the birth years, without regressing newly created contacts.