Can't edit Question Bank draw within Quiz lesson

I have a course with a Quiz lesson - there's one 'draw from question bank' entered.

When I just click 'Draw 5 questions...' Rise encounters an error: "Something went wrong".  I've tried the same process on other courses which didn't previously have any issues and get the same outcome. This was fine before the latest update.

I asked a colleague to check on another different course and they experienced the same error. 

Anyone else?

(edited to attach screenshot)