Interactive Video submit screen button negates purpose of disabling navigation
I just discovered that the current implementation of the "submit screen" defeats the purpose (for us, anyway) of the "Prevent skipping forward in a video" feature. Essentially, users can now access the submit screen at any time, even if they have not watched the entire video or reached the point in the timeline where the submit screen was inserted. I'm marking this as a bug rather than a feature request because this new feature has essentially broken a previously working feature (that my organization partially funded).
My recommendation: make the submit screen star icon invisible or inactive if "Prevent skipping forward in a video" setting is checked. Actually, I was quite surprised that it could be clicked at any time even when I inserted it at a particular point in the timeline -- that seems counter-intuitive and likely to confuse both content authors and end users. Maybe disable it if it has been manually inserted into the timeline, too?