Losing Tracking when Actor for Echo Hands are not in Sight UE4.23

[FSapio]

Hello Everyone,

I have a problem, and I hope you will be able to help me. Here are the steps to reproduce the error.

1. Download the https://github.com/leapmotion/LeapUnrealModules repository.
2. Load the map in Rigging -> CustomRigHello
3. Select the HandsLeapPawn in the map, and add another Skeletal Mesh component
4. On the newly created Skeletal Mesh component set the handsio_ and its relative AnimBP (Echo_Skeleton_AnimBlueprint) like in the figure below:
   
   

Of course all the rest is untouched, including the AnimBPs.

Now the problem is the following: if you look down (the origin of the pawn is on camera), both hands are rendered correctly. If you look up in the sky (the origin of the pawn is not see from camera), the new handsio_ mesh that we have created lose the tracking (they return to the 0,0,0 position), whereas the original hands are tracked correctly.
I am not sure if this is an unwanted optimization step, but I cannot figure it out how to make them always tracked.

Thank you in advance for your kind help.