how to enable dynamic shadow for mobile

Development Platform & Builds Mobile
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1

I created a blank project with unreal 4.20.3, when compiler for Android does not display dynamic light, static only, how do to activate dynamic shadow for mobile

2

https://forums.unrealengine.com/development-discussion/android-development/41661-tip-how-to-enable-dynamic-shadows-correct-reflection-maps-on-mobile