iOS13 暗模式键盘 isSecureTextEntry 导致快照错误

Question

I have 3 textfields for name, email and password. The password textfield has isSecureTextEntry = true which causes this weird message output when I switch typing from the password textfield to one of the other textfields:

Snapshotting] Snapshotting a view (0x11c510ff0, _UIReplicantView) that has not been rendered at least once requires afterScreenUpdates:YES.

This only happens in dark mode. I am testing on a physical device. iPhone 8+. When I switch to light mode this message doesn't output. I am trying to understand what causes this message and what it means.

Answer 1

Using

overrideUserInterfaceStyle = .light

caused the output to go away. Still confused as to why this happens on dark mode.