Discrepancy between 2D and 3D previews when creating a dynamic unlit material

[NotArme]

Material Maker version:
Material Maker 1.4a2

OS/device including version:
Windows 11 / RTX 2060

Issue description:
When creating dynamic materials with a lot of transforms applied, often the size of elements will change between the preview 2d and preview 3d.
The issue can be seen on this image, where the iris of the eye is noticeably bigger (or maybe the eyelid is smaller? idk) in the preview 3d, even though the output for both previews are supposed to be the same

Steps to reproduce:
Although I couldn't find exactly what causes the problem, the bug can be seen on this material:
PreviewBugMaterial.zip