move an appointment from one user to another

Steps to reproduce

I have two users "A" & "B".
Each of them has a shared calendar with each other.
if I write an appointment for "A" and after a few hours or days I want to move it to "B" calendar and vice versa, the appointment disappears from the OneCalendar app.
I have been using calendar since version 2.0.5 and it has always given me this problem.
I currently use NextCloud Version 25.0.3 and Calendar 4.2.2 and OneCalendar 4.3.4
what can I do ?

Expected behavior

should move the appointment to the opposite calendar

Actual behaviour

the appointment moved from user "A" to user "B" disappears

Calendar app version

4.2.2

CalDAV-clients used

onecalendar Ver. 4.3.4 Android

Browser

Chrome 108.0.5359.124

Client operating system

Ubuntu Mate 22.04

Server operating system

Ubuntu Server 22.04

Web server

Apache

Database engine version

MariaDB

PHP engine version

PHP 7.4

Nextcloud version

25.0.3

Updated from an older installed version or fresh install

Fresh install

List of activated apps

sudo -u www-data php occ app:list
Enabled:
  - activity: 2.17.0
  - bruteforcesettings: 2.5.0
  - calendar: 4.2.2
  - circles: 25.0.0
  - cloud_federation_api: 1.8.0
  - comments: 1.15.0
  - contacts: 5.0.3
  - contactsinteraction: 1.6.0
  - dashboard: 7.5.0
  - dav: 1.24.0
  - federatedfilesharing: 1.15.0
  - federation: 1.15.0
  - files: 1.20.1
  - files_external: 1.17.0
  - files_pdfviewer: 2.6.0
  - files_rightclick: 1.4.0
  - files_sharing: 1.17.0
  - files_trashbin: 1.15.0
  - files_versions: 1.18.0
  - firstrunwizard: 2.14.0
  - logreader: 2.10.0
  - lookup_server_connector: 1.13.0
  - mail: 2.2.2
  - maps: 0.2.4
  - nextcloud_announcements: 1.14.0
  - notifications: 2.13.1
  - oauth2: 1.13.0
  - password_policy: 1.15.0
  - photos: 2.0.1
  - privacy: 1.9.0
  - provisioning_api: 1.15.0
  - recommendations: 1.4.0
  - related_resources: 1.0.3
  - richdocuments: 7.1.0
  - richdocumentscode: 22.5.802
  - serverinfo: 1.15.0
  - settings: 1.7.0
  - sharebymail: 1.15.0
  - spreed: 15.0.3
  - support: 1.8.0
  - survey_client: 1.13.0
  - systemtags: 1.15.0
  - text: 3.6.0
  - theming: 2.0.1
  - twofactor_backupcodes: 1.14.0
  - updatenotification: 1.15.0
  - user_status: 1.5.0
  - viewer: 1.9.0
  - weather_status: 1.5.0
  - workflowengine: 2.7.0
Disabled:
  - admin_audit
  - encryption
  - suspicious_login
  - twofactor_totp
  - user_ldap

Nextcloud configuration

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "yyy.xxx.it:39xxx",
            "192.168.1.220",
            "yyy.xxx.org:39xxx"
        ],
        "default_phone_region": "IT",
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "25.0.3.2",
        "overwrite.cli.url": "https:\/\/yyy.xxx.it:39xxx",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "mail_smtpmode": "smtp",
        "mail_smtpsecure": "ssl",
        "mail_sendmailmode": "smtp",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "465",
        "mail_smtpauth": 1,
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauthtype": "LOGIN",
        "maintenance": false,
        "theme": "",
        "loglevel": 2,
        "updater.secret": "***REMOVED SENSITIVE VALUE***"
    }
}

Web server error log

No response

Log file

No response

Browser log

No response

Additional info

No response

Start by reproducing the shared-calendar move with the reported Nextcloud, Calendar, and OneCalendar versions, then inspect the calendar sharing and event-move behavior. Done means an appointment moved from user A's calendar remains visible in user B's calendar and vice versa.