The Flipbook Size setting changed from the Vector2 type to "Flipbook" which is a _Vector2 int _type.

Vector2 cannot be wired to Flipbook property as no conversion/cast is handled. This can create an upgrade issue with VFX that were using Wired Vector2 property to the Flipbook setting.

Reproduction Step:

• open a Unity Project (23.3 or above)
• Open the Package manager
• In the Visual Effect section go in the sample tab.
• Install the additional sample
• Find the bonfire prefab and drop it in the scene.
• Notice the Flame and Smoke appears to be broken.
• Open the VFX Graph.
• Open the Flames Subgraph by right-click ->open subgraph
• Browse to the output Section.
• Notice that the nothing is connected to the Flipbook Size Setting.

!image-2024-05-13-14-41-57-608.png|thumbnail!
!image-2024-05-13-14-42-43-136.png|thumbnail!

Before it use to be this way
!image-2024-05-13-14-42-22-988.png|thumbnail!
!image-2024-05-13-14-42-49-865.png|thumbnail!