Perf_Counter "Not Supported" in 2.4

[Farmhouse Geek]

I tried to add some additional Items to a monitored host, a 3rd party app that dumps performance data to the performance monitor, but when I check the results all I see are "Not supported" in latest data.

When I test on the command line it works:

.\zabbix_agentd.exe -t perf_counter["\APP_NAME(_total)\# messages queued"]

returns

perf_counter[\APP_NAME(_total)\# messages queued] [d|45746.000000]

But in Zabbix: Latest data » Custom graphs » Dashboard » Host inventory » Configuration of items I get "Not supported"

I turned logging up to debug, and notice dynamic perf_counters load

6032:20151102:165312.238 In add_perf_counter() counter:'\Processor(0)\% Processor Time' interval:900
6032:20151102:165312.253 add_perf_counter(): PerfCounter '\Processor(0)\% Processor Time' successfully added
6032:20151102:165312.253 End of add_perf_counter(): SUCCEED

but I don't see the APP_NAME counters load, and I dont see any failures:

5936:20151102:165347.659 In send_buffer() host:'172.16.5.14' port:10051 values:0/100
5936:20151102:165347.659 End of send_buffer():SUCCEED
6032:20151102:165347.831 In collect_perfstat()
6032:20151102:165347.831 End of collect_perfstat()

What am I missing?