Movable spotlights for android 5.1 ??

Hello,
I noticed that the movable spotlights in my android game are no longer supported after upgrading my unreal version from 5.0 to 5.1. Also, the number of supported movable spotlights option in the project settings disappeared. What can I do to solve this ? What happened ?

Well. I had to change shader type from forward to deffered.