I'm on the process of moving my items from my primary vault (iCloud sync) to a 1Password paid account. The move isn't that easy, but I can see that topic is already discussed widely on the forum - so I'll leave that for now ;-)
When using the iOS app on iPhone and moving items from my old Primary vault to a new online vault the process halts when the screen goes black. I was about to move 360-something items and because of this fairly large amount of items the screen dims and then goes black - and now it seems that the moving has freezed.
Tried a few times and same result.
1Password Version: iOS 680005
Extension Version: Not Provided
OS Version: iOS 10.3.2 (14F89)
Sync Type: iCloud