Hello, Elle!
I am wondering if the browser makes a difference?
I have had no traffic lights on my Chromebook, using Chrome.
But my 'phone and tablet run on the Brave browser and they get traffic lights etc every time.
No, I'll leave Norah in peace, I emailed her this morning, so that will do.
I noticed you had answers for your clues but I did not read them.
So....
23a, The poem is a "qua train".
Train is exercise, no idea about "qua", but Anne Bradford has it under "as".
Collins has "quatrain" as a poem with only four lines to it.
18d Count is "add", surrounded by "mens/stag".
Maddens.
I see we have "harsh" in the puzzle today!