nextcloud / nextcloud/calendar
Deleted calender events in Thunderbird/Macbook appearing again from nextcloud calender
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@SebastianKrupinski is already working on this.
Since Oct 23, 2025.
0. to triage
bug
- Dominant language
- JavaScript
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- Merged PRs (30d)
- 137
Description
Steps to reproduce
- add nextcloud caldav in thunderbird/macbook calender
- get the calender invitiation from some user and save it into your nextcloud calender using Thunderbird
- the meeting organizer cancel/delete the meeting and send you the event updates when you click on delete/update, it actually deletes the event in thunderbird/macbook calender but after sometime it appears again, when we checked the event in the nextcloud web calender the event is not there so it's seems like the problem is with nextcloud calender caldav synchronization
Expected behavior
deleted events should not appear again in thunderbird, caldav is not synchronizing properly
Actual behavior
deleted events are not synchronizing with Thunderbird, nextcloud web interface does not have events but nextcloud calender that we added in thunderbird does have event, (no it's not from other/local calender)
Calendar app version
Version 5.5.5, AGPL-licensed
CalDAV-clients used
Thunderbird in Macbook
Browser
No response
Client operating system
No response
Server operating system
No response
Web server
Apache
Database engine version
MariaDB
PHP engine version
PHP 8.1
Nextcloud version
30.0.10
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: 4.0.6
- appointments: 2.4.6
- bookmarks: 15.2.0
- bruteforcesettings: 3.0.0
- calendar: 5.5.5
- circles: 30.0.0
- cloud_federation_api: 1.13.0
- comments: 1.20.1
- contacts: 7.3.2
- contactsinteraction: 1.11.0
- dashboard: 7.10.0
- dav: 1.31.1
- deck: 1.14.6
- drawio: 3.0.9
- external: 5.5.2
- federatedfilesharing: 1.20.0
- federation: 1.20.0
- files: 2.2.0
- files_antivirus: 5.6.6
- files_downloadlimit: 3.0.0
- files_external: 1.22.0
- 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
- firstrunwizard: 3.0.0
- keeweb: 0.6.21
- lookup_server_connector: 1.18.0
- nextcloud_announcements: 2.0.0
- notifications: 3.0.0
- oauth2: 1.18.1
- onlyoffice: 9.10.0
- password_policy: 2.0.0
- photos: 3.0.2
- polls: 8.3.10
- privacy: 2.0.0
- provisioning_api: 1.20.0
- recommendations: 3.0.0
- related_resources: 1.5.0
- serverinfo: 2.0.0
- settings: 1.13.0
- sharebymail: 1.20.0
- spreed: 20.1.10
- support: 2.0.0
- survey_client: 2.0.0
- systemtags: 1.20.0
- text: 4.1.0
- theming: 2.6.0
- twofactor_backupcodes: 1.19.0
- twofactor_totp: 12.0.0-dev
- updatenotification: 1.20.0
- user_ldap: 1.21.0
- user_saml: 7.0.0
- user_status: 1.10.0
- viewer: 3.0.0
- weather_status: 1.10.0
- webhook_listeners: 1.1.0-dev
- workflowengine: 2.12.0
Disabled:
- encryption: 2.18.0
- files_rightclick: 0.15.1 (installed 1.6.0)
- files_videoplayer: 1.13.0
- logreader: 3.0.0 (installed 2.13.0)
- suspicious_login: 8.0.0
- twofactor_nextcloud_notification: 4.0.0
Nextcloud configuration
Web server error log
Log file
Browser log
Additional info
No response
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Assessment
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