In my case, Everything is fine in LoginViewController, but in SignUpViewController, this issue happened
I solved it by rename SignUpViewController to SUpViewController. A magic!!! I don't know why it works
hienho
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I have the same issue, I solved it by rename Sign Up View Controller to another name like 'SUpViewController', then everything works properly. May be IOS recognizes view controller name to help app suggest password but because of the weird reason, it caused bug in keyboard
It's kind of the same issue guys
I fixed this bug by rename SignUpViewController to another name
https://stackoverflow.com/questions/52701160/native-uitextfield-secure-text-entry-forces-english-us-keyboard/53760545