✓ Topic not marking as read

DESCRIPTION
The encyclopedia updates thread isn't marking itself as read when I've read it all. When I click on the arrow to take me to the last read message, it takes me to the start of the thread, showing that I've read it all, but then doesn't mark the thread as read. The only way to make it go away is to mark the entire forum as read. This has only happened to this specific thread; other threads in the same forum are working fine.
SCREENSHOT
Image posted by the member
ERROR MESSAGE
N/A
DEVICE AND BROWSER
Android phone, Ecosia 4.3.0.262 (4.3.0) (I think Ecosia is based off Chrome)
EDIT
This is also happening for me on my laptop on Chrome 71.0.3578.98.
It's also telling me here that Piper Clark was the last to post in the thread, but on the thread itself it shows this as the last post, and still takes me to the first post of the thread when I click the button which should take me to the latest unread.

│=
#00308F
ency • cassie heather
=│
breathe in, breathe through, breathe deep, breathe out
Part-Veela • Alluring • Perfectionist • Scream • Sta 9 • Eva 9 • Stre 4 • Wis 10 • Arc 8 • Acc 9
│

✓ Topic not marking as read
This is the same for me on safari on my iPad

Lavinia Cloven
Irina Afanasyeva
| STA: 10 | EVA: 18 | STR: 7 | WIS: 8 | ARCP: 6 | ACC: 29 |
Foulplay, Interception, Evasive Maneuvers, Keen Eye, and Muggle Condition
--—--#337085

✓ Topic not marking as read
Same here for bing on my kindle

✓ Topic not marking as read
Same thing happened to me. I had to press the Mark All Read button at the top to fix it

Xander Smythe
Stats: Stamina: 6 | Evasion: 6 | Strength: 5 | Wisdom: 7 | Arcane Power: 5 | Accuracy: 6

✓ Topic not marking as read
Just to clarify for those who can't see it:
The issue has been adressed on the discord server, apparently Piper is really the last one who posted, but a glitch makes us students unable to see it.
Staff is aware :)

Opeila Winters | Raffle | Theodore Duncain
Sta-10 | Eva-14 | Str-4 | Wis-17 | Arc-9 | Acc-15

✓ Topic not marking as read
No idea what could have happened here but... let's just say it was a one-time thing!