communication failure when starting engine

Today I used my Pscan for the first time. Installing software was successful. I connected it to the car and could read the fault codes.
As soon as I want to read live data and start the engine (instead of only the ignition on), I get a fault code. See screenshot. 
It happens after a few seconds. BMW or ISO doesn't make a difference. 
What is wrong?
 

Which ECU is this?
In general the starter motor can create a lot of electrical noise which can corrupt the protocol between pscan and the vehicle.
The best thing is to start the engine and then initiate the connection.

it is a Mg TF LE500. Don't know details about the ECU.
I am going to try to first start the engine and than connect the P-scan. Although when I start the engine the P-scan not immediately stops, it keeps working for a few seconds. So I am not convinced that the starter motor is the issue.