There is a process provided out of the box, called "Idea Review" with ID "csk_rvw_proc". This is by default in the Draft status. When we try to activate it by using the "Validate and Activate" button, the following Warning message is obtained.
BPM-0664: The process contains cycle
A sample screenshot is as follows.
This is expected, since there are steps in this process that create loops. This is by design.