Hi,
Thought I'd share my experience in case it helps anyone else.
So, the RRS (L461 2023 with 13500 miles) has been having some EV issues with the 'EV temporarily not available' message from time to time. Presumed it's the heater.

Was booked in with Dealer but earliest courtesy car available was mid July Didn't mind too much as just use petrol.

Anyway, then started having trouble charging, starting and stopping the charge intermittently and mostly not charging to 100%, usually get to 62% and stop.

On Wednesday evening I thought I'd try the granny charger in case it was my charging point - lo and behold it charges to 100%, pre-conditioned in the morning and everything, perfect .

After a full day out on Thursday, plugged it in and lights went red, - Fault. tried various options but nothing. OK. Got in the car on Friday evening - 50 yds down the road 'Stop Car Safely - Electrical Fault'
Had the LR assist guy out this morning. Updated software and checked everything over, 12v system not charging and found fault codes;

P065B-16 Generator Fault
P1A51-64 and P1A52-64 Battery Faults

Suspect fault with generator or HV battery

Its being recovered on Tuesday and I pick up disco loaner, so, watch this space. L494 Range Rover Sport Dynamic HSE - 2019, 3.0 SDV6, Loire Blue - SOLD
L461 Range Rover Sport Dynamic SE P440e - 2023
3.0 Petrol PHEV
Firenze Red