[Xymon] Xymon metrics bug

I don't know if this has been covered before but when I try to use the "Metrics Report" for showing multiple hosts RAM/Swap graphs, I get a broken image...however, when I select "All" then the graph actually displays. I just tested this on xymon.org to see if maybe it was my instance but it exhibits the same behavior (and fails for Disk which I didn't try before). Is this actually working for anyone else? Choosing a single server works just fine.

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