[TF2 SDK] Linux Dedicated servers doesn't connect to item servers

I have been trying to figure this one out for a long time and nothing happens no matter what I do. On Windows Listen and Dedicated servers the server connects to the item server fine and players are able to equip their items, the more stranger part is that on Linux Listen servers, everything works but not on Linux Dedicated servers.

For reference I have updated tf_gc_server.cpp to only use SteamGameServerHTTP and never use SteamHTTP to rule out if that's causing the main problems but no difference.

item_dumpinv_sv yields this output:

========================================
(SERVER) Inventory for account (xxxxxxxxx):
  Version: 18446744073709551615:
   Num items: 0