Good morning, I have the same problem, sometimes it is better to have a breakdown than a malfunction that cannot be defined. I have an Octavia G-TEC 1.4 CNG with DSG 7, I have carried out various tests and replacements, reversed the coils, changed the spark plugs, change injectors (with used ones), replaced the pressure reducer (with another used but tested), checked every single connection to the control unit, checked the alternator voltage but the problem persists. I am desperate. Now the situation has worsened. When accelerating, between 5th and 6th gear at 2000 rpm, the car sporadically loses power for a small moment. I hope someone on this forum can have an idea, I have run out of mine! 😂