Markers are broken on iOS and Android

Bug

Markers do not render on both iOS and Android with latest v12.1.0

Unexpected behavior

Reusing the sample code to render markers on Path is broken. No markers show.

Environment info

 System:
    OS: macOS 10.15.5
    CPU: (16) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 4.50 GB / 32.00 GB
    Shell: 3.2.57 - /bin/bash
  Binaries:
    Node: 12.14.1 - /usr/local/bin/node
    Yarn: 1.21.1 - /usr/local/bin/yarn
    npm: 6.14.5 - /usr/local/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  Managers:
    CocoaPods: 1.8.4 - /usr/local/bin/pod
  SDKs:
    iOS SDK:
      Platforms: iOS 13.5, DriverKit 19.0, macOS 10.15, tvOS 13.4, watchOS 6.2
    Android SDK:
      API Levels: 26, 27, 28, 29
      Build Tools: 26.0.2, 26.0.3, 27.0.3, 28.0.3, 29.0.0, 29.0.2
      System Images: android-26 | Google Play Intel x86 Atom, android-27 | Intel x86 Atom, android-27 | Google APIs Intel x86 Atom, android-27 | Google Play Intel x86 Atom, android-29 | Google APIs Intel x86 Atom, android-29 | Google Play Intel x86 Atom
      Android NDK: Not Found
  IDEs:
    Android Studio: 4.0 AI-193.6911.18.40.6514223
    Xcode: 11.5/11E608c - /usr/bin/xcodebuild
  Languages:
    Java: 1.8.0_241 - /usr/bin/javac
    Python: 2.7.16 - /usr/bin/python
  npmPackages:
    @react-native-community/cli: Not Found
    react: 16.11.0 => 16.11.0
    react-native: 0.62.2 => 0.62.2
  npmGlobalPackages:
    *react-native*: Not Found

Library version: 12.1.0

Steps To Reproduce

Issues without reproduction steps or code are likely to stall.

1. git clone https://github.com/ghanemabdo/react-native-svg_marker_sscce
2. cd react-native-svg_marker_sscce
3. yarn
4. react-native run-ios
5. sample code renders on simulator/device without markers

Describe what you expected to happen:

1. The Path rendered from the sample code should show a marker at the end of the path. The marker does not appear

2. Using snack on the web with the same sample code, markers show correctly

Short, Self Contained, Correct (Compilable), Example

Sample code used to repro the issue

<Svg width="400" height="200" viewBox="0 0 4000 2000">
  <Defs>
    <Marker
      id="Triangle"
      viewBox="0 0 10 10"
      refX="0"
      refY="5"
      markerUnits="strokeWidth"
      markerWidth="4"
      markerHeight="3"
      orient="auto"
    >
      <Path d="M 0 0 L 10 5 L 0 10 z" />
    </Marker>
  </Defs>
  <Rect
    x="10"
    y="10"
    width="3980"
    height="1980"
    fill="none"
    stroke="blue"
    strokeWidth="10"
  />
  <Path
    d="M 1000 750 L 2000 750 L 2500 1250"
    fill="none"
    stroke="black"
    strokeWidth="100"
    markerEnd="url(#Triangle)"
  />
</Svg>

[JetA2]

I have the same issue with version 12.1.0 of the library. The same code renders correctly with version 11.0.1.

[iphonic]

This still doesn’t work even after adding fill… https://github.com/react-native-svg/react-native-svg/issues/1739

Can anyone please help.