Sarah Munby has claimed she never told the former Post Office chairman to delay compensation.
Rishi Sunak was asked at PMQs about axed 2016 investigation which might have cleared postmasters sooner.
Users fault Gemini for generating diverse images in inappropriate historical contexts.
The company says leadership changes are meant to improve the quality and safety of its planes.
The new notes have been printed ready to use and will be used for the first time on 5 June.