I think all of this could be calculated before going to java (especially on the New Architecture, where we already have Transforms parsed in c++. I'm not sure how it's done on the Old Arch). Then, we could simply pass values like scale and rotation as numbers (without the ReadableMap).

I tried figuring it out a few days back but couldn't hack it.

I worry more about the processTransforms call before it, though. What happens there is RN goes through the list of transforms and calculates a transformation matrix. The transforms are read from a dynamic data structure - ReadableMap.

You have to focus on the thread first by clicking on it (where the blue arrow points) and then WASD should work