Calendars don't keep assigned colour

[ppfeufer]

Steps to reproduce

1. Assign a colour to a calendar
2. Wait a couple of hours
3. Check again and observe a different colour for that calendar

Expected behavior

Assigned colour persists

Actual behavior

Assigned colour changes.

This seems to happen every couple of hours and the colour keeps changing.

A couple of hours ago, I - again - set the colours to match these …

Now, without me changing anything, they have these …

In a couple of hours, they will be different again … (Will post a screenshot here tomorrow …)

Calendar app version

5.0.8

CalDAV-clients used

Thunderbird and DAVx5

Browser

Chrome

Client operating system

Gentoo Linux

Server operating system

Debian 12

Web server

Apache

Database engine version

MariaDB

PHP engine version

PHP 8.2

Nextcloud version

30.0.4

Updated from an older installed version or fresh install

Updated from an older version

List of activated apps

Enabled:
  - activity: 3.0.0
  - admin_audit: 1.20.0
  - app_api: 4.0.3
  - bookmarks: 15.0.4
  - bruteforcesettings: 3.0.0
  - calendar: 5.0.8
  - cloud_federation_api: 1.13.0
  - contacts: 6.1.2
  - cookbook: 0.11.2
  - dashboard: 7.10.0
  - dav: 1.31.1
  - encryption: 2.18.0
  - federatedfilesharing: 1.20.0
  - federation: 1.20.0
  - files: 2.2.0
  - files_downloadlimit: 3.0.0
  - files_pdfviewer: 3.0.0
  - files_reminders: 1.3.0
  - files_sharing: 1.22.0
  - files_trashbin: 1.20.1
  - files_versions: 1.23.0
  - fileslibreofficeedit: 2.0.1
  - firstrunwizard: 3.0.0
  - groupquota: 0.2.1
  - impersonate: 1.17.0
  - integration_github: 3.1.1
  - integration_gitlab: 3.1.2
  - lookup_server_connector: 1.18.0
  - maps: 1.5.0
  - notes: 4.11.0
  - notifications: 3.0.0
  - notify_push: 0.7.0
  - oauth2: 1.18.1
  - password_policy: 2.0.0
  - photos: 3.0.2
  - privacy: 2.0.0
  - provisioning_api: 1.20.0
  - quota_warning: 1.20.0
  - recognize: 8.2.0
  - recommendations: 3.0.0
  - richdocuments: 8.5.3
  - richdocumentscode_arm64: 24.4.1002
  - serverinfo: 2.0.0
  - settings: 1.13.0
  - sharebymail: 1.20.0
  - survey_client: 2.0.0
  - suspicious_login: 8.0.0
  - tasks: 0.16.1
  - text: 4.1.0
  - theming: 2.5.0
  - twofactor_admin: 4.7.1
  - twofactor_backupcodes: 1.19.0
  - twofactor_nextcloud_notification: 4.0.0
  - twofactor_totp: 12.0.0-dev
  - twofactor_webauthn: 2.0.0
  - updatenotification: 1.20.0
  - user_status: 1.10.0
  - viewer: 3.0.0
  - webhook_listeners: 1.1.0-dev
  - workflowengine: 2.12.0
Disabled:
  - circles: 30.0.0 (installed 29.0.0-dev)
  - comments: 1.20.1 (installed 1.19.0)
  - contactsinteraction: 1.11.0 (installed 1.8.0)
  - files_external: 1.22.0 (installed 1.17.0)
  - logreader: 3.0.0 (installed 2.10.0)
  - nextcloud_announcements: 2.0.0 (installed 1.14.0)
  - related_resources: 1.5.0 (installed 1.0.4)
  - support: 2.0.0 (installed 1.8.0)
  - systemtags: 1.20.0 (installed 1.15.0)
  - user_ldap: 1.21.0
  - weather_status: 1.10.0 (installed 1.9.0)

Nextcloud configuration

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "nextcloud.walhalla.lan",
            "nextcloud.ppfeufer.de"
        ],
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "overwritehost": "nextcloud.ppfeufer.de",
        "overwriteprotocol": "https",
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "updatedirectory": "\/home\/pi\/nextcloud-updater",
        "skeletondirectory": "",
        "templatedirectory": "",
        "dbtype": "mysql",
        "version": "30.0.4.1",
        "overwrite.cli.url": "https:\/\/nextcloud.ppfeufer.de",
        "htaccess.RewriteBase": "\/",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "check_data_directory_permissions": false,
        "simpleSignUpLink.shown": false,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 0,
            "dbindex": 0,
            "timeout": 1.5
        },
        "mail_smtpmode": "smtp",
        "mail_smtpsecure": "tls",
        "mail_sendmailmode": "smtp",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauth": 1,
        "mail_smtpauthtype": "PLAIN",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "587",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "preview_libreoffice_path": "\/usr\/bin\/libreoffice",
        "preview_ffmpeg_path": "\/usr\/bin\/ffmpeg",
        "enable_previews": true,
        "enabledPreviewProviders": [
            "OC\\Preview\\Movie",
            "OC\\Preview\\PNG",
            "OC\\Preview\\JPEG",
            "OC\\Preview\\GIF",
            "OC\\Preview\\BMP",
            "OC\\Preview\\XBitmap",
            "OC\\Preview\\MP3",
            "OC\\Preview\\MP4",
            "OC\\Preview\\TXT",
            "OC\\Preview\\MarkDown",
            "OC\\Preview\\PDF",
            "OC\\Preview\\Image",
            "OC\\Preview\\SVG",
            "OC\\Preview\\Font",
            "OC\\Preview\\MKV",
            "OC\\Preview\\AVI",
            "OC\\Preview\\Photoshop",
            "OC\\Preview\\TIFF",
            "OC\\Preview\\OpenDocument"
        ],
        "trashbin_retention_obligation": "5, 7",
        "maintenance": false,
        "theme": "",
        "loglevel": 2,
        "default_language": "en",
        "default_phone_region": "DE",
        "appcodechecker": true,
        "connectivity_check_domains": [
            "www.nextcloud.com"
        ],
        "enable_file_metadata": true,
        "activity_expire_days": 14,
        "auth.bruteforce.protection.enabled": true,
        "cron_log": true,
        "logfile": "\/var\/log\/nextcloud\/nextcloud.log",
        "logtimezone": "Europe\/Berlin",
        "log_rotate_size": 104857600,
        "integrity.check.disabled": false,
        "knowledgebaseenabled": false,
        "filesystem_check_changes": 0,
        "filelocking.enabled": true,
        "updater.release.channel": "stable",
        "app_install_overwrite": [
            "files_antivirus"
        ],
        "quota_include_external_storage": true,
        "twofactor_enforced": "true",
        "twofactor_enforced_groups": [],
        "twofactor_enforced_excluded_groups": [],
        "maintenance_window_start": 1
    }
}

Web server error log

Log file

Browser log

Additional info

PHP Version: 8.3.15

[ppfeufer]

Didn't have to wait that long for the next change …

[ppfeufer]

This morning …

[ppfeufer]

nextcloud-log.zip