can not stop QThread

[newcfd]

I am using Qthread/Worker in Qt4.8. In the worker, a third-party library is called.
The code worked fine before. Now qthread can not be terminated after data structure
is changed for the call to the third-party library. What can be the cause?

[anda_skoa]

There is not enough information to tell what the problem could be, but maybe the third party function does not return?

Cheers,
_