I do set my departure time to 15-20 minute for departure, and I am usually off the ground by that time. I have my checklist for every plane timed out to how long it will take me. I am then getting my squawk code and click mode c. I am then taking off. I can do a whole flight with it NOT activating my flight plan at all. I have been having this issue from day one when I finally figure out how to fill out the flight plan correctly, thanks to your help on discord. However, I have done numerous flight and maybe only one was with an activated flight plan. Yesterday I i reached out on discord and one of the ATC guys said that he could see me and could read my flight plan and had no idea why it was not activating. This is one of the many reasons I am not a fan of POSCON, but I want more realistic ATC and I am not giving up, yet.
I did uninstall and reinstall after you posted about the new CPDLC thing. and mine shows I am on v8 but I do not get the same things you showed in the youtube video.