Nowadays, when a Crucible project is created, the Review Duration is by default blank.
According to Editing a project, when this field is left blank, reviews created on this project will have no time restriction applied, that is, newly created reviews won't have a Due Date.
As development lifecycles usually have deadlines for each task, which includes reviewing code, Crucible administrators have to always remember to set a Review Duration when creating new projects.
In addition to making the Review Duration be a mandatory field, there should be a way of setting a default value for that field so that, whenever creating new projects, that field will always be set to a value that Crucible administrators have defined somewhere.
Specify the Review Duration time on each Crucible project being created or edited.