AMP Story saves the last visited page id while visiting the story, if it cannot find the page on reload due to some reasons, then it should start from first page instead of just freezing the whole functionality.
It is a fairly easy issue to reproduce, I wonder how has this been out for such long, To be precise we are facing this issue from the 0.1 version itself.
All browsers that support localStorage.
0.1 and 1.0 both

Yep, this makes sense. I'll send a quick fix for 1.0. 0.1 is deprecated and does not get updated with non-critical fixes.
@newmuis Any update on the fix for this?
Sorry, this was complicated by another issue that I believe has since been refactored. I should be able to take another look at this in the coming week.
Sure no problem
Actually, @bramanudom already fixed this with #20238. Thanks @bramanudom!