Why are design android studio elements not showing up?

Question

Android

Why can't items be displayed?

And when you start everything is fine

Answer 1

Answer 2

Try replacing the support:design library (in build.gradle Module: app) with the version below.
For example, it helped me to replace
implementation 'com.android.support:design:28.0.0-alpha3' with
implementation 'com.android.support:design:28.0.0-alpha1'

Answer 3

The difference between the API versions is probably, try to click on it and show what's there: