Video is not rendered if videoComposition renderSize is the same as source video track's naturalSize

Media Technologies Audio
Nezhyborets OP
Created Sep ’20
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In example below there is a simple AVComposition with one video track, with AVVideoComposition that is single passthrough instruction. Source video track has preferredTransform == identity, so no need to modify layer instruction, passthrough should work.

And for some reason, it doesn't render in AVPlayer when
Code Block 
let renderSize = videoAsset.tracks(withMediaType: .video).first!.naturalSize
videoComposition.renderSize = renderSize


If I slightly modify either render size or set some transform on composition track - everything works.

https://www.icloud.com/iclouddrive/0IrVpTkRkb213-T57OkQNn7WA#VideoCompositionProportionalRenderSize
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Video is not rendered if videoComposition renderSize is the same as source video track's naturalSize
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