Just ran into this problem myself. It has to be a SwiftUI bug as a brand new project with only a TextField triggers the error.
struct ContentView: View {
@State var input: String = ""
var body: some View {
TextField("username", text:$input)
}
}
However it only occurs on iPad for me. No workarounds at this time that I've found, but seems to be innocuous though.
Looks like the same issue as these:
https://stackoverflow.com/q/66082340
https://stackoverflow.com/q/65652502
https://stackoverflow.com/q/65974942