lwip saving tcp client structs to unreadable memory when I tried to port energia's ethernet code to ccs

The code that causes the problem is in available in this file, this line specifically after more than one client is added. The only difference between this and the one I added to ccs is that the __sync_fetch_and_null macro was removed due to relying on gcc, and it was used in a part of the code that's atomic anyway as all interrupts are disabled.

I call it from this code, it works fine until the second client upon which the server.available() fails. 

void roveComm_GetMsg(uint16_t* dataID, size_t* size, void* data) 
{
  uint8_t flags = 0;
  uint16_t seqNum = 0;
  roveIP senderIP;
  EthernetClient client;
  
  *dataID = 0;
  *size = 0;
  client = tcpServer.available();

  if(client && client.available() != 0)
  {
    for(int i = 0; i < client.available(); i++)
    {
      RoveCommBuffer[i] = client.read();
    }
    client.stop();
    RoveCommParseMsg(RoveCommBuffer, dataID, size, data, &seqNum, &flags);
    RoveCommHandleSystemMsg(RoveCommBuffer, dataID, size, data, &seqNum, &flags, &client);
  }
  else if (roveEthernet_GetUdpMsg(&senderIP, RoveCommBuffer, sizeof(RoveCommBuffer)) == ROVE_ETHERNET_ERROR_SUCCESS)
  {
    RoveCommParseMsg(RoveCommBuffer, dataID, size, data, &seqNum, &flags);  
    RoveCommHandleSystemMsg(RoveCommBuffer, dataID, size, data, &seqNum, &flags, senderIP);
  }
}