The arrows should have been there all week.
There's definitely not a bug in the training part, since the arrows apparently disappeared from stamina and appeared on the newly popped skill at the correct time.
If it was the case that absolutely no up arrow display occured for stamina at all during the week, that was a bug/glitch, but is unlikely to be repeated if that is what happened.
NO ONE at this table ordered a rum & Coke
Charles: Penn has some good people
A CT? Really?
Any two will do
Any three for me
Any four will score
Any five are live