Issues or errors on the Microsoft Q&A website.
The two threads are not connected but, you should see both in your profile.
I have changed the title of this one to avoid confusion.
If you are able to view the content of the threads in InPrivate, I suggest clearing the cache then trying to view the important thread normally. (the one dealing with your PST problem.
in edge, enter edge://settings/clearBrowserData into the address bar
select all time in the top dropdown and "Cached Images and files" and click clear now.
re-open edge then try your original thread again.