it looks right to me, but then, you've shown only a fragment.
The most helpful tool in diagnosing this sort of thing is the logfile generated by IIRF when you turn logging on.
use log level of 3 or so, to get some insight.
Run one request through the filter, and see what the logfile says.
you mentioned that you are moving from an older version of IIRF. The v1.2 and the v2.0 version of IIRF use different ini files, in different locations. That may be the source of your problem. Check the documentation for full details.