start and end of a project

I use Captivate 9. I had a project, made for teachers, and I wanted to end the project at a certain date.  In 'Project info' I put the date to end the project, after which should appear: "the project has expired'. But after that date I did not get a response from the teachers to tell me the project had expired. They just continued with the project without problems!

Is it possible that in some forms of publishing a Captivate project this marking of an end date does not work, possibly, has disappeared totally? If so, which method of publishing has the best results?