Round corner break the blend of layers

[lumingzh]

Blend layers from rectangle to other shapes works fine only without round corners:

• without round corners:

• with round corners:

[lumingzh]

Tested with morph of layers, and has the same problem:

[Keavon]

This is the expected behavior. Their topologies differ, so it is inserting points to make it work, and those points don't all map to the spatially closest targets. This likely isn't solvable, it is just the nature of the problem.