Adobe Captivate Classic - not bookmarking

I have a project that contains 3 slides:  1st slide is the title, 2nd slide I added a Teams .mp4 file, and the 3rd slide is just a slide with "Complete" on it.  I am publishing this video to an LMS.  If the learner gets interrupted and closes the content in the middle of the video, I want them to pick up where they left off when they return to the content.  In the project, I do not have a TOC.  In Preferences under the Advanced LMS settings, I do not have "Never Send Resume Data" checked.  For some reason, the content always starts over at the beginning slide 1.  

Thoughts?  Am I missing a setting?