[c-nsp] RSPAN 3750X (IP BASE) - Received Only Broadcast/Multicast - No Unicast :(

[Manu Chao]

I received only broadcast/multicast traffic from remote RSPAN 3750X switch
(L3, IP SERVICE) on my local 3750X switch (L2, IP BASE).

Do i need IP SERVICE to get also unicast traffic??

IOS 15.0(2)SE2

Any help/recommandation welcome