Meeting rooms not available in Nextcloud calendar

Steps to reproduce

1. Create event in Nextcloud Calendar web interface
2. Add attendee and open more details
3. Not all configured meeting rooms are shown as "Suggested" but are visible in "Show rooms" even though they are available at the selected times
4. After deleting one off the rooms that are not shown and recreating it under a different name the new room appears but another one disappears

Expected behaviour

All meeting rooms should be shown under suggested when available at the selected times

Actual behaviour

Not all configured meeting rooms are shown as "Suggested" but are visible in "Show rooms" even though they are available at the selected times

Server configuration

Web server: Apache

Database: PostgreSQL

PHP version: 8.5/8.4/8.3

Nextcloud version: (see Nextcloud admin page)
34.0.4

Insert your browser log here, this could for example include:
a) The javascript console log
b) The network log
c) ...

Start by reproducing the issue in the Nextcloud Calendar web interface with configured rooms and compare the Suggested and Show rooms lists at the same time. Inspect the RoomVox application behavior and room availability data, then verify that every available configured room appears under Suggested and that recreating a room does not make another disappear.