[todo-mvp-databinding] DataBinding class does not generated automatically

Android Studio and Gradle Version:3.4.1
Gradle Plugin Version:5.1.1
kotlin support

code:
dataBinding {
enabled = true
}
annotationProcessor "com.android.databinding:compiler:3.1.4"

Earlier, I use version 3.0.1 and 4.1. It worked well, DataBinding class can be generated automaticlly.
When i upgrade to 3.4.1 and 5.1.1. The databinding class does not generated automatically,
it can be generated after rebuild (or "make project", or keymap command + F9).

when i use kapt "com.android.databinding:compiler:3.1.4", it also not work.

What should i do to make databinding class be generated automatically

Start by reproducing the issue with Android Studio 3.4.1, Gradle Plugin 5.1.1, the shown dataBinding block, and the annotationProcessor declaration. Compare automatic generation with generation after rebuild or Make Project; done means the DataBinding class is generated without a manual rebuild.

Written by the indexing model from the issue text.