Suuposed to be arriving SHV never seen this status.
Here’s a permalink of what you’re talking about, but I don’t think it’s any reason to get upset about - at least not yet.
We never got an arrival message for that flight but it looks like it arrived so we marked it as Tentatively Arrived.
I wouldn’t have been concerned either as the last plotted position was at about 1000’ AGL on final.
Why is it that when the status is “unknown” there is no access to the track log? Obviously the data is available, just not to us! 
I checked the airport acitivity and saw him on approach. He’s safe! Thanks!
I checked the airport acitivity and saw him on approach. He’s safe! Thanks!