Problem with two BSSV sharing the same endpoint

Hello.

We have an issue with two BSSV that share the same endpoint, but I do not have sure if it is the problem. We developed one BSSV some time ago, that is working well, but we needed to do another BSSV that uses the same endpoint. I tested it on JDeveloper and it worked, but when we put it on PY environment, it finished in error when we executed it (the error is "Call to Web Service failed, error: &1").

However, we find out something weird: when we restart the BSSV server and run the newer BSSV, it worked well, but the older one stops working, with the same error. The same behavior happen when we start the server, but the first BSSV we run is the older, the newer finishes in error.