And re-reading the article it starts saying HMS Queen Elizabeth had a “coupling” problem. Also? It isn’t clear at all.
If it was a coupling problem then one of the huge drive shafts may have become.... UN-coupled (a really big deal, depending on how or what the coupling section is designed).
Who knows the article is in reality fairly unclear, about which was which with the trouble or... maybe both had the same problem.
The Brits seem to have a lot of these issues.
IIRC, Princess Di was supposed to have had some coupling problems too?