We have an item with an aggregated calculation and custom macros.

sum(last_foreach(/*/perf_counter_en["/Web Service(_Total)/Current Connections"]?[group={$OGROUP}])) 

I setted {$OGROUP}=Test group

When testing, we get an error. Somewhere the 'group=' part disappeared and of course we get a syntax error.

I have no any problems when I use it without a macros as bellow

sum(last_foreach(/*/perf_counter_en["/Web Service(_Total)/Current Connections"]?[group="Test group"])) 

The most interesting thing is that the above construction correct works - the data is collected according to the group. Error only when checking-testing.