So for a project i’m working on, a blueprint was used to create modular buildings. These buildings are essentially an array of static meshes positioned around each other to form the shell of a building. Attempting to vertex paint on these after upgrading to 4.16 causes the scene to freeze for a second or so, and no vertex paint to transfer over unless the painting is done in single clicks. Clicking and dragging results in a prolonged freeze.
As a test, i constructed a building manually in the world with the same parts as used in the blueprint array, vertex painting on these is fine. If i select all of the mesh elements, and convert them to a single actor, i get lag/freezing when i paint on that actor. Similarly, if i create a blank actor, and create a building manually in there with static meshes, i get freezing/lag. The more static meshes in the actor, the greater the freeze/lag.
This is pretty much a game-breaker for me right now. It makes vertex painting impossible.