In simulator or device or both ?
I tested on simulator and reproduced the error.
On iOS 13.2, the view does not scroll. And it is not possible to scroll the view upward manually, making it quasi impossible to use the setting.
On iOS 12.4, the view scrolls but keyboard does not hide when hitting Return.
May be a temporary work around would be to put the textFields at the top of settings list…
Anyway, I'll file also a bug report. FB7437204
Did you file one ?