Question about flashing lights

Hey been lurking for a while and this is my first post and it's a tech question.

I have a 2000 Disco II and my check engine light came on and with all the cold weather we are having every time I start the Disco the Sport mode light and Manual mode light flash until the car warms up and then I have to shut the engine off and restart for those to go away. Also when those lights are flashing the car only goes into Drive and Reverse when I put it in any other gear it just flashes the Drive light.

Any ideas of what this could be? Hopefully just a sensor I can replace or something.

Just now I believe I am having the same problem. Flashing S and M lights. I go to drive and my drive light flashes and doesnt fully drive. Going to go back out and try it again. Any ideas of what the problem may be.

Thank you

Sounds like a stop light switch