Deadlock in _XReply

The SW application freezes only if installed on a machine equipped with a touch monitor and mouse, but it does not freeze if installed on a non-touch device (eg laptop or on a workstation connected to a non-touch monitor).
I'm using fedora 25 and QT 5.8.
I'm not using QML but Widgets.

Attached part of the stack and part of the assembly

It would seem a deadlock, a recursive call to the _XReply () function (xcb_wait_for_event) and no longer enters the functions of the application I created (I did the test inserting breackpoints in the application and it doesn't fit anymore).

Analyzing the stack is very similar to the stack shown
in the following blog:

xcb: XError recurses & hangs after XLib request buffer filled up