How do I enable facebook feature "seen by" to work? In the last week it stopped working and only shows the "seen by" icon, but not the people who've seen it. I have 61 members which is less than the 250 required before "seen by" is removed. Can someone help solve this issue? I have not found other posts helpful for a fixing this.
My facebook group page is: @ https://www.facebook.com/groups/1991723487759689
An image of the page is shown here showing "seen by" icon.
