Hello!
Nextcloud version: 28.0.4
Operating system and version: ubuntu 22.04
Apache or nginx version: Apache/2.4.52
PHP version : 8.3.4
Browser name and version: Chrome, Firefox
Talk Server version: 18.0.6
Custom Signaling server configured: yes
Custom TURN server configured: yes
Custom STUN server configured: yes
When I create a new conversation, I can immediately specify a list of participants. After I click the “create conversation” button, the conversation is created, but a window with the word “Creating the conversation …” remains and the participants are not added to the meeting. If you add participants after creating a conversation, everything works.