For example, 1.7.11: Canceling or killing the (Agent?) console leaves zombie processes can cause the Agent to start so many processes that it will cause the computer to freeze, and you will not be able to stop it without manually finding these processes in the task manager or restrart the computer, because even after closing the IDE, the processes do not close, since they are not even linked to the IDE (!) and are called separately.
The bug report is already a week old.