I f***** hate the royals and prince Andrew is a horrid little s***, but this looks to me like a doddery old man trying not to fall over when doing something he finds physically challenging and being clumsy.
Even with “prince andrew” levels of entitlement I couldn’t imagine him thinking “ why yes, I will glad hand my daughter when the world is watching and we are paying tribute to my dead mother”.
Edit: He should have stepped back and not been in the public view given all the past history and financial bail out from his mum. Will be interesting to see how Charles handles him in the future as new head of the firm.