Unexpected behavior of graph in screens menu

[Nothing497]

Hi everyone,

I'm experiencing some weird behavior when I'm in screens menu. I'd like to have the value of the total disk space of a machine in addition to the used disk space, so I've added the item to the original graph.

I can see it in the Editing mode of the screen :



It's' the same when I check the graph directly. However, when I'm out of the editing mode, Zabbix only displays "no data" for the item in the screen :



I've tried to edit the graph and the screen without any luck ... Does anyone has any idea on what's going on and how can I work around this ?

[Hamardaban]

When viewing the graph, you have selected a time period that is too short and there is no data for “Total” data element.

[Nothing497]

I'm so ashamed for not having thought of it ... Thank you !