Changing module items after a student has begun without affecting prerequisites or requirements

[GeralynDucady]

Hello!  I am about to launch a self-paced course that people can take at any time (no start or end dates).  It is also ungraded.  I do have modules that are set as prerequisites and parts of the modules are set as requirements.  If I need to update/swap out a video that is part of a module after students have started the course, will that mess up their progress / be read by Canvas as if they didn't watch the video and reset that they already completed a prerequisite module or required part of a module?  Thank you!

[kylejtuck]

I just used the "View Progress" in Modules for a dev course I have. I made note of a couple students that had completed a module. I then edited that module a couple times by first duplicating an embedded video, then editing the link for the duplicate embed. After making those edits, the students that had previously had the module marked as Complete still had it Complete.