Steps to reproduce:

• Create the Host group for Templates with the name Custom templates and Host group for the host with the name File servers
• Create a host, for example - NextCloud 13
• Create two templates, one with the name Custom Template App Zabbix Agent
• Add a few Triggers into each of the Templates
• Navigate to availability report, select:
• Mode: By trigger template
• Template group: Custom Templates
• Template : Custom Template App Zabbix Agent
• Template trigger: all
• Host group: File servers

Result:
In the filtered out result, you are able to find not only the triggers from the Custom Template App Zabbix Agent but also from the second template, however, in the filtering, there is a clear statement to show only the triggers from Custom Template App Zabbix Agent
Expected:
Expected to respect all the filtering options.

Screenshots in the attachment