Ro-ro ferry stranded on Dublin Anchorage, not clear why

Ro-ro cargo ship MISTRAL encountered unspecified mechanical problems on Dec 12 while approaching port of destination Dublin, on arrival from Liverpool, and was brought to anchor on Dublin anchorage. A group of truck drivers and some 80 unaccompanied trailers are stranded on board, said news outlet As of 0400 UTC Dec 15, the ship was still at anchor, new ETA Dec 15 midday It is not clear, why the ship couldn’t be taken to port by port tugs.
Ro-ro cargo ship MISTRAL, IMO 9183788, GT 10471, built 1999, flag Finland, manager GODBY SHIPPING AB.



My name is Nikolay Torkin, I’m Merchant Marine Master, presently in command of feeder container ship trading in South East Asia. My family lives in Prague, Czech Republic. Mikhail provides me with daily accidents reports, I send him information with regards to accidents and container ships.