[c-nsp] VLAN int down on 3925, but spanning tree shows forwarding on that VLAN

[Church, Charles]

Anyone seen this before, 3925 running 15.0(1)M4, with a 4 port ESW card.  VLAN int is down/down, while 'show vlan-switch' shows vlan active.  Show spanning tree for this VLAN shows a switchport on the 4 port card forwarding on this VLAN.  It's happened a couple times to us on this device.  Shutting and un-shutting the VLAN interface brings it up, it'll be fine for days then.  Any ideas?

Thanks,

Chuck