OSCAM showing all cards as local

Can you post to show how you have added you peers to oscam.server & user sections.

There is nothing there to say why all are showing as local, i have briefly experimented with oscams cccam protocol & found these settings worked with cccam behaving as it should,check these lines against what you have.

in oscam.conf
[global]
preferlocalcards = 1
lb_mode = 1

[cccam]
port = 12000
reshare = 1
version 2.x.x
stealth = 1

For your peers in oscam.server
[reader]
label = name
protocol = cccam
device = example.dyndns.org,12000
user = username
password = password
inactivitytimeout = 1
group = 1
blockemm-unknown = 1
blockemm-u = 1
blockemm-s = 1
blockemm-g = 1
lb_weight = 100
cccversion = 2.x.x
cccmaxhops = 0
ccckeepalive= 1

Whatever you use here

I found this is important - lb_mode = 1

lb_mode = 0 loadbalance disabled, ECMs go to all readers lb_mode = 1 fastest reader first, after 5 ECMs the reader with the fastest response time will be selected lb_mode = 2 oldest reader first, reader with the longest no answer lb_mode = 3 lowest usage level, the usage level will be calculated by the sum of 5 ECMS response times, the higher a reader is busy, the higher is usage level

I notice you have cccmaxhops =10, this will generate a huge amount of traffic for your server,

0 = local SCs only 1 = local SCs and + 1 hop 2 = local SCs and + 2 hops     and so on     default = 10

For peers in oscam.user
[account]
user=username
pwd=password
group=1
cccmaxhops=2
cccreshare=1

As musogeek said the groups will not cause this but it may be a good idea to reshare only your local until you get to the bottom of this by giving them only groups 1&2.
I am sure another member will be able to spot exactly where you have gone wrong soon enough.Hope you get it sorted quickly.