Limit to Number of Activities in Offering

Summary

I would like to confirm whether there is a limit to the number of activities allowed in an offering.

Content

I have created a course with an offering and with 10 activities in total (inclusive of a mandatory evaluation) and enrolled a learner for the offering. However the learner could only view 8 activities out of the 10. May i know if there is a limit of the number of activities that I could create? If not, what could I do so that the learner could view all the activities in the offering?

Thank you.