Server's XML configuration does not contain Ports in Servers view

In my automated tests, I often run on the issue on the Servers view, that the server does not have anyting under the XML configuration (no Ports). It happens 1 out of 3 times. See screenshot attached. The Ports do not appear even if I collapse the server's tree and expand it again.

I was not able to reproduce this manually. Do you have any idea where the problem could be? Is thare anything special about the Ports that could cause this issue?