Trials and Tribulations of Using Numbas for Summative Assessment

This year, I decided that I would use Numbas to set a final exam for a module of Signals and Systems. Following issues encountered in setting up and testing the assessment, the examination finally went live on June first 2021. There were issues on the day so I had to do a full audit and remark the exam. I encountered a number of issues and gotchas which did not emerge during testing which I would be happy to share.