Problems with ConstraintLayout - ImageView 16:9 inappropriate top margin

Question

I want to build the following layout using ConstraintLayout:

I use this source for layout:

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Answer 1

Based on answers and comments posted in reply to this question and considering the fact constraint-layout v1.1.0 is still in beta, the best solution at this moment would be to use app:layout_constraintVertical_chainStyle="packed":