The streams are coming in on a VLAN that is different than the route pointing to the sender. (Example below)
* (vr VR-rgfiber) core1.bc1.35 # show mcast cache 239.x.x.x
Snooping/MVR Cache Timeout: 300 sec
Type Group Sender Age InVlan
pim 239.x.x.x 192.x.x.x 0 vlan1
Vlan Port Vid
vlan1 26 600
Multicast cache distribution:
3 entries from Snooping 0 entries from MVR 277 entries from PIM
* (vr VR-rgfiber) core1.bc1.34 # rtlookup 192.x.x.x
Ori Destination Gateway Mtr Flags VLAN Duration
#be default 128.x.x.x 0 UG-D---um--f- vlan2 146d:2h:40m:56s