3D: dirty regions ignore all animations but one

I have a sample with three rotating spheres. Only one of them actually rotates, the others are not rendered. Attaching the code and the texture it uses. Observations:
- with dirty regions off, it starts to work
- when bounds intersect (the spheres are slightly closer to one another), it renders everything fine
- each sphere is wrapped in a group; if I put the spheres to the scene directly without the groups, it starts to work
- the sphere that works is always the last one added to scenegraph
- all the time the animation runs, the rotate property is updated, the sphere is synced, it's just not part of dirty region