iPad app not linking properly into 1Password

Thanks Dave but it still is not working properly. I have made the changes to the iOS Password AutoFill as you outlined but when I try and log in to the WeightWatchers app and get the "Email or username" field and then tap in the field I get nothing; if I tap again, I get a little bubble with "AutoFill". When I tap on "Autofill" then I get a new bubble with three choices "Contacts, Passwords or Scan Text". Selecting "Contacts" gets a list of all our contacts in the system and "Scan Text" turns on the camera and enters any text in the picture onto the screen. Selecting "Passwords" results in a new window requiring you to "Enter the iPad passcode to view passwords" which then takes you to another window to "Choose a password to AutoFill" from the Apple iOS (not 1Password) and it is blank because we have no passwords saved in the Apple iOS system.

Alternatively, when I get the "Email or username" field in the log in process for the app, it I open 1Password and copy the username and paste it into the field and select "Next", then it does provide me with a chance to select select a password from 1Password but I have to log into 1Password again (even though it is already open). Once I log into 1Password it then inserts the correct password for the app into the input field. Then I can select the "Log In" button and it logs into the WeightWatchers app. Instead of entering my long password for 1Password twice, I would just open it once and then manually copy the username and password into the app - that is what I have been doing with the four Android apps that I cannot get to link properly with 1Password.