On iOS, Nested ScrollView is locking FlatList gestures after zoom out action released

Hello guys,

I’m trying to build a simple carousel gallery with (images or <View />) zoomable.

I have exactly, the same problem as https://github.com/facebook/react-native/issues/15216 but this one has been closed and locked without any help/answer.

Description

Gestures of parent container (which is FlatList or VirtualizedList) works as long as we don’t zoom in/out his children (which is a ScrollView).

Once we zoom in/out Scrollview, gestures of the parent container is immediately locked.

We have to wait (not touch screen until) 2 secondes before gestures is enabled again.

After that period, gestures of the parent container re-enabled again then swipe left/right works great.

React Native version

react-native info

info Fetching system and libraries information...
System:
    OS: macOS 10.15.2
    CPU: (8) x64 Intel(R) Core(TM) i5-8259U CPU @ 2.30GHz
    Memory: 44.50 MB / 8.00 GB
    Shell: 5.7.1 - /bin/zsh
  Binaries:
    Node: 10.18.1 - /usr/local/opt/node@10/bin/node
    Yarn: 1.21.1 - /usr/local/bin/yarn
    npm: 6.13.4 - /usr/local/opt/node@10/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  SDKs:
    iOS SDK:
      Platforms: iOS 13.2, DriverKit 19.0, macOS 10.15, tvOS 13.2, watchOS 6.1
  IDEs:
    Xcode: 11.3.1/11C504 - /usr/bin/xcodebuild
  npmPackages:
    react: 16.9.0 => 16.9.0 
    react-native: 0.61.5 => 0.61.5

Steps To Reproduce

1 - Swipe left and right, zoom in/out to feel how the swiper and zoom works.

2 - Zoom out to get an scale < 1 ( Like this http://d.pr/i/2Mr2W ) Once you stop zooming, you’ll see that the image get’s back to original size (scale=1)

3 - Immediately after release zooming action, try to swipe left/right If the bug occurs, you should not be able to swipe right/left

It looks like ScrollView as children block gestures parents until I don’t know…

4 - If you stop swiping and wait a few seconds (1 or 2 seconds) and you try, again you’ll be able to swipe right/left

Expected Results

The user should be able to swipe left/right immediately after zoom out action, even if the zoom animation is not finished.

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Closing this issue after a prolonged period of inactivity. If this issue is still present in the latest release, please feel free to create a new issue with up-to-date information.