
...so this is an Assignment and, in particular, its menu. In 3.11, one of the menu options under the "Settings cog" was logs. It opened the logs page with the current activity selected.
Where has it gone?
Unless I've missed something, I have to go back to the course page (only way is to spot the course in the breadcrumb), select Reports, Select Logs and then find the activity in the dropdown. Which, if the course is huge, can take ages.
Seems like a serious omission...