Issues we had.

we ended up having to film our peice twice, because our first actress became unwell and we needed to get the rest of the filming done, so we had to find another actor to be part of the peice, and re-film the shots with him.
also our production process was interrupted by sudden illnesses and work commitments throughout the group, this meant that we had to work while someone was missing during ceartin stages of the process, we found it was important to make sure even in absence everyone knew how far we'd gotten and what needed to be done, so if someone was ill and someone else picked up where they left off they could just get on with it.