Android studio Instant Run restarts whole app every time

Question

I'm running Android Studio 2.3.2, gradle:2.3.2. Every time I click Instant Run button the whole app restarts with this message in log:

Instant Run applied code changes and restarted the app. The app was restarted since it uses multiple processes.

However, I do not use android:process anywhere in my code. Moreover, there are no processes in Android Device Monitor or Android Monitor except main one.