The latter did enter service between Troon and Arran in January this year, with Glen Rosa due to be delivered "no earlier" than April 2026.
The ship was launched last year but The Times reports it has suffered a new setback.
The CalMac ferries are just fine. The port is another story
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According to the newspaper, Glen Rosa 's funnels were fitted purely for aesthetic purposes for the launch and the vents later had to be removed to fit components including engine parts.
The gap was not sealed after the removal of the funnel and the ship was flooded by heavy rain on the Clyde two weeks ago.
The total cost of the two ferries i