i cna suggest the below check your zenrender.conf file . try these and let us know the output. Check the date time stamp on the server , Click on a graph and copy image url and open in a different tab of browser does it still shows blank
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i cna suggest the below check your zenrender.conf file . try these and let us know the output. Check the date time stamp on the server , Click on a graph and copy image url and open in a different tab of browser does it still shows blank