My P400e has started to run rough on tick over. Usually happens on 40+ mile journey. Example: Pull up at a junction and feels like the idle revs are too low so car splutters and engine shaking. Can also feel it while driving when you take your foot off the gas pedal... although runs fine when you press the gas pedal... Came home from a 90 mile drive today, last 26 miles on motorway with no problems... pulled into my driveway, put the car in park, and there it was, struggling to keep running, engine shaking like it was being starved of fuel. Stopped the engine, started it again and it ran perfectly...

Has anyone had this issue or know wtf is happening??
2018 RRsport P400e 2L petrol.

Thanks