After updating to 4.4, my SpotLight3d is looking jarringly different, both clips are from identical copies of the same project on different versions (4.3) - (4.4), any idea what the problem may be, or how I can revert it back to normal?
Looks like you have per-vertex lighting, 4.3 has it as an option that does nothing, 4.4 actually implements it. The setting will be per-material or forced on in the project settings, though I doubt you enabled it in the project settings.