I've using a brand new Mavic Pro and DJI 4.0 software on an iPad (current generation). I connected the Mavic Pro and iPad via DJI 4.0. Things went smoothly until I hit the last page ("Confirm Your Account"). I was prompted to confirm an email address I'd already used for my DJI account. Since it was correct, I dropped to the bottom of the page to click on the "Activate" button. No joy. The button won't click and the frozen page is blocking access to my DJI 4.0 app. Any suggestions? Thanks in advance.