Hi Mark
I’m sorry that you’re having issues, I have checked the database and can see that you have been running this current map since May, I’m sure that you would have noticed back when you first installed the updated map if this issue was occurring, please log the air flow reading as this type of symptom is caused by a faulty airflow sensor, I also notice that you have a induction kit fitted, and these can cause the airflow meter get contaminated. If the airflow meter is faulty these do not flag a fault in the ECU, this is because the deteriorate over time.
Regards
Dave