Last one from me today I hope.

Things have stopped working. Front heated screen. Rear demister. Heated seats and AC

Can they be linked to the same problem? BCM??

Things seem to be escalating,, k not sure if the Gearbox can just lose its settings,, it can be reset but has to be done in the software and not by accident so to speak. Strange you have had the body off lately,,, not possible a wiring harness has been nipped or has rubbed through somewhere during refitting. 2010 RRS, TDV8
bali Blue / colour coded
side steps / flappy paddles
black perforated leather
22" overfinch
heated everything, TV,fridge ...... now with gold calipers and mud flaps !( black mud flaps that is) !!
Many years ago,,,,, 1955 series 1 landie , sometimes wish I had kept it

It sounds like the issue (along with the others you have posted) is related to the body being removed. Either it was taken off incorrectly resulting in damage to the harness or it was put back on and something has been caught/squeezed resulting in harness damage. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

I’d say you have an Earth issue linked to lifting the body, look at the wiring diagrams and see if those items have a common Earth. 2019 5.0 SC SVA (Current)
2012 5.0 SC AB. Sadly written off by a campervan
23 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph