There could be several reasons. Maybe your internet connection is weak or unstable. Check your Wi - Fi or mobile data. Another possibility is that the user has restricted their story's privacy settings, so only a selected group can view it.
Well, it's not extremely rare. Internet connection problems are very common, and if your connection is not stable, you might not be able to see your Ig story. Also, some people accidentally mess up their privacy settings which then causes them to not see their own stories. So, overall, it's a problem that many Instagram users encounter from time to time.
It might be that the privacy settings of the person who posted the story are restricting you from seeing it. For example, they might have set it to be visible only to a select group of followers. Or perhaps your account has some sort of restriction or violation that is preventing you from viewing stories in general.
There are several reasons why some people can't see IG story. One is that the user may have restricted the audience for their story, for example, only allowing a select group of followers to view it. Also, if the Instagram app on their device is not updated, it might cause problems in viewing stories. Additionally, if the device has privacy settings that block Instagram from accessing certain features, it can prevent story viewing.
To fix the problem of not seeing IG stories, start by clearing the cache of the Instagram app. This can often resolve glitches. Also, log out of your account and then log back in. If the issue persists, try uninstalling and reinstalling the app. But be aware that you may lose some local data like saved drafts.