I don´t know what changed, but when I went to Youtube today and expanded the list, it didnt let me “allow once” a specific script. Earlier this week, I could do that and load only the scrips, that I wanted on that website and now I can only turn the “block ALL scrips” button on or turn it off. Either allowing ALL of them or not and not just the 1 or 2, that I like.
I’ve raised this issue with the team which is as much as I’m able to do at this time.
Please note that at this time, you can use the old Shields panel by enabling it in brave://flags — search for brave-shields-v1 and set the flag to Enabled.