Hello,

I am encountering a permissions-related issue on my Zabbix server, and I need some assistance.

Problem Description:

1. I have a group of users in Zabbix assigned to a user group with proper read/write access to all hosts.
2. A Super Admin user can see all hosts and their data, but certain users in the same user group, even with Admin privileges, cannot see some hosts in the Monitoring → Hosts section.

Troubleshooting Steps Taken:

• Verified that the user group has read/write permissions on the host groups containing the missing hosts.
• Checked that the items for the hosts are active and properly configured.
• Confirmed that the same issue occurs for users with different browsers and cleared cache.
• Examined database integrity and ensured all hosts and items are properly linked.
• Tested creating a new user and assigning them to the same group—same issue persists.

Observations:

• This issue does not seem to occur for all hosts but is limited to certain ones.
• The problem persists even for Admin users with seemingly correct permissions.
• The issue may relate to the database or an internal configuration affecting item visibility.

Questions:

1. Could this issue be related to database inconsistencies or corrupted permissions?
2. Are there any known bugs or fixes in recent versions of Zabbix that address similar issues?
3. How can I debug the visibility of hosts and items in the database or frontend?

Let me know if further details or logs are needed. Thank you for your help!