Crash when RemoveInstance() Grouped Sprite Component

Hi,
Im trying to use the Paper Grouped Sprite component, and i get the following crash when i attempt to “RemoveInstance()”:

“Assertion failed: Setups.Num() == NumInstances [File:D:\Build++UE4+Release-4.12+Compile\Sync\Engine\Plugins\2D\Paper2D\Source\Paper2D\Private\GroupedSpriteSceneProxy.cpp] [Line: 123]”

So i created a setup to isolate the problem and still i cant figure it out.

This is my setup: A BP that holds a “GroupedSpriteComponent” with collision set to “OverlapAllDynamic” and MultiBodyIndex set to “true”.
Added a OnBeginOverlap event to CapsuleComponent on 2DSideScrollerCharacter that removes instance on grouped sprite:

What am i doing wrong? What info you need?