Sean,
I suspect config issue.. Could you share me config?
Get the following from edit mode:
show chassic fpc <number> (in your case fpc1)
show chassis pseudowire-service
show interfaces <psX>
show interfaces lt-x/x/x
show interface <xe>
show protocols l2circuit
show protocols lldp
show protocols mpls
run show interfaces terse | match ps
run show interfaces terse | match lt
run show chassis hardware models
Note: if you are using PS interface for subscribers(such pppoe/dhcp)? if yes, PS interfaces are supported on Modular Port Concentrators (MPCs) with Ethernet Modular Interface Cards (MICs) only.