I have struggled to get replies to emails from course tutors/leads, which I have found difficult.
From a supervisor POV, as I work with them this has not been a problem as I can just ask them anything as it comes up.
My main issue has bene ethics approval, which I still do not have despite the dissertation being due at the end of august (and a first draft due at the end of this month!). One of the issues here was that had I had a little more guidance, I would have designed the project in a way that only required University ethics board approval, rather than the NHS process which is far longer and has had significant delays throughout. I could have bene finished with my project months ago had I designed it in a way that meant I could just use the University's ethics process.