[2022] Still having problems with the engineer Hero Ferrari

I know it's been an issue for a while but people still manage to unlock them. I have done ground cz's every wich way from Sunday and can't get the invite to trigger. I've done low, high,medium, taken the Frontline shuttle,taken my own ship, logged after the result screen, turned in my bonds immediately after ect. ect. ect. I'm at my wits end. I have done so many at this point I'm actually getting good at them. Are there any other ways I can try or should I just keep doing them till I'm blue in the face.