Linux vs Max RE clientId 0

[Derek Tishler]

I just switched my trading system from Mac OS to Ubuntu 14.04 for use with Tensorflow + GPUs. I have everything set up again but I am seeing a new behavior with client Ids.

My order system has always connected to clientId 0. This allowed me to call reqAutoOpenOrders to handle orders(even those made in TWS).

Source: https://www.interactivebrokers.com/en/software/api/apiguide/java/reqautoopenorders.htm

Since switching over to Ubuntu, I always get the error showing that id is already in use. I checked the connections window in TWS and there are no other clients with this id, nor I am trying to connect to it with other connections. Is TWS on Ubuntu itself consuming the clientId 0 and preventing me from using it perhaps?

In the mean time, I have switched to using a manually set Master API client ID. Weak source: https://www.interactivebrokers.com/en/software/tws/usersguidebook/configuretws/apisettings.htm

Has anyone seen this issue before? It is not a show stopper by any means, but I was hoping to understand the issue more.