1. What warning? If its the one about including all the source sprites - its likely you've moved the wrong object - make sure its the spriteCollectionData object and not the spriteCollection object.
Yes, that was it. Thanks for the tip, it helped me got it working
My initial tests are very promising, but I have also run into more problems:
1. How can add colliders to batched sprites, when scripting the batcher?
Building level elements from static square blocks I would like to add box collider to each sprite and then make batcher combine them for me. There fields BoxColliderExtentZ and BoxColliderOffsetZ but I cannot figure out how to use them
2. In one case, batching a few dozen sprites resulted in doubling the draw calls needed for the scene (from 30 to 60).
Are there cases where sprite batcher could interfere with dynamic batching?
Thanks for your help!