animation not showing on UWP

## 🐛 Bug Report

Animation is not showing up on UWP, when build minimum version is lower than 17763. This already has been mentioned in https://github.com/Baseflow/LottieXamarin/issues/255#issuecomment-626795512

### Expected behavior

The animation should start, no matter what minimum version is selected.

### Reproduction steps

Add package version 4.0.10 to your shared project. Add a lottie-file as embedded resource. Change your UWP build target to target version 18362 and minimum version to 16299. Start the app. The animation doesn't play.

Change minimum version to 17763. Restart the app. the animation plays.

### Configuration

**Version:** 4.0.10

**Platform:**
- [ ] :iphone: iOS
- [ ] :robot: Android
- [ ] :checkered_flag: WPF
- [x] :earth_americas: UWP
- [ ] :apple: MacOS
- [ ] :tv: tvOS
- [x] :monkey: Xamarin.Forms

Reproduce the issue in a Xamarin.Forms shared project using LottieXamarin 4.0.10, with UWP target 18362 and minimum version 16299, then compare it with minimum version 17763. Inspect the UWP animation startup path and identify why the lower minimum version prevents playback; done means the embedded animation starts in both configurations.

Written by the indexing model from the issue text.