No, I just didn't word it very well. You don't actually 'need' to be in open loop, you can do closed loop tuning with fuel trims BUT the LTFTs work in blocks... so it's not a very precise way to tune. I should have said that you 'should' tune in open loop because it's more precise.
Because you're not following instructions. Joecar told you to set table B3618 to EQR 1.175 and you set it to 0.85 and when I pointed out that joecar said you should set it to EQR 1.175 and you change display properties back to AFR. If you can't follow one simple instruction like that, who knows what you've done with setting up your Calc VET.