I’m having exactly the same problem but not induced by recent work.
Dash gauges working fine yesterday but experiencing the same issue as Leanne today. I had the same issue about a year ago, but half way through the journey on the way to a dealer (15 minute driving), the gauges kicked back into action again so I didn’t follow through as the issue didn’t reoccur... until today.
Could this be related to a loose connection? Or potentially a battery issue? I saw a YouTube video of the dash cluster being removed and refitted and didn’t look too challenging so I’m tempted to try.
Appreciate any insight!
Cheers,
Chris