Config suggestion cannot be made without proper understanding of your setup. The following explanation should help you to decide where it fits better.
In active mode, a Ruckus device actively sends out IGMP queries to identify multicast groups on the network, and makes entries in the IGMP table based on the group membership reports it receives. Routers in the network generally handle this operation. Use the active IGMP mode only when the device is in a stand-alone Layer 2 Switched network with no external IP multicast router attachments. In this case, enable the active IGMP mode on only one of the devices and leave the other devices configured for passive IGMP mode.
Similarly passive mode is used to forwards reports to the router ports which receive queries.
When a device receives an IGMP V2 leave message, it sends out multiple group-specific queries. If no other client replies within the waiting period, the device stops forwarding traffic. When fast-leave-v2 is configured, and when the device receives a leave message, it immediately stops forwarding to that port. The device does not send group specific-queries. You can config this under the vlan.
If you still need assistance, we would request to open a tac case for reviewing the topology and devices involved before suggesting any changes.