Max instance not working?

I have a footstep sound. That sound is being triggered by lot’s of NPCs.
If I set the max instance limit in the steps event itself to “1” and on the bus that it is routed to, to “1”, I still get lot’s of multiple instances. How come?

Using Fmod 2.2.21

We can’t easily determine what’s going on here without examining your project in detail, but from your screenshots it does look like many event instances are being started at the same time. If this is the case, it’s normal to see that many instances appearing in the graphs, because the instances are being started in the same frame and stopped a moment later when the instance is stolen due to the instance limit being exceeded.

Are you hearing large numbers of footstep sounds coming out of your speakers? Or only one at a time?