1) I create discovery check with a) port check and b) Zabbix agent "system.uname" check

2) hosts are discovered and can be listed under monitoring->discovery (both port and system.uname

3) I create action with following conditions: a) Received value like Windows b) Service port = 9102

This action doesn't work. When I create two separate Actions and split these conditions between then it works. It seems the combination of different discovery checks doesn't work which radically limits the possibilities how to define the conditions based on discovered services.