Note the issues with the original post in this thread should be resolved in the latest spine-starling.

@woood, you might want to start a new thread, but yes the transitions will be smooth.

I'm getting this error again. Maybe it resurfaced?

Mine is PolygonBatch.as line 168 where it's reading from uvs at index 8, but length of uvs is only 8.

I am using Starling 1.7's asset manager to reference the TextureAtlas and json file data as opposed to embeds. I got the raptor example to work the same way, but when my artist exported his project and I put it in the game the same exact way as the raptor example I get this error.

What version of Spine is your artist using for export?