We are using Zabbix-1.8.3 and have discovered a problem related to hosts linked to a template which is linked to a second template.

More details to try and explain:

Our host = 'Host1'
'Host1' is linked with a template named 'Citrix licensing server'
Template 'Citrix licensing server' is linked with 'Template citrix server'

The reason for doing it this way is so that items within the 'Citrix licensing server' template can inherit Applications defined within 'Template citrix server' - obviously If we created an application with the same name in each template and linked them individually to Host1, it would fail because of the duplicate Application name. An alternative would be to only have the Application required in one of the templates, Link them to Host1 individually and then edit the items on Host1 to use the required Application - I would rather not do it that way.

All the host / template linkage appears to work successfully and even when viewing the items of Host1 I can see that all the Applications / Triggers and Items from both linked templates appear in the list and do not show as unsupported, however when debugging the agent on Host1 I can see that the server never requests the items defined in 'Template citrix server' nor do they appear in the latest data for Host1.