The Irish Marine Casualty Investigation Board (MCIB) examined an incident involving the Irish Ferries ro-pax EPSILON, which happened in February 2016. The report has been published and can be downloaded via the link below.
What happened: after sailing from Cherbourg to Dublin the Italian-flagged vessel experienced adverse weather conditions (Force 10, waves 6-9m), causing cargo shifts, damage and injuries to people.
Some issues: Senior Master versus Duty Master, cargo securing, weather forecasting.
Conclusions in paragraph 5, and safety recommendations in paragraph 6.