I'm putting this down as a bug because it was a problem with Dolphin as well. I seem to recall raising a workaround for this with Anton but I'm having trouble finding the email.
On the Timeline Dropdown, there are several options:
If you look at the timeline or click on any of the first three options, the results don't seem to relate to the heading.
On my own profile, All Posts only shows posts made by me. (This should be Posts by Profile Owner)
Posts by Profile Owner only shows two posts and the Load More button is inactive. When I log on as other active members, the area can be blank.
Posts by Others is blank even though they've made posts which also appear in the outline.
You can try the Timeline under your profile on this site to see what I mean.