Troubleshooting

Symptom	Likely cause	Fix
Animation doesn’t play in Edit mode	Animated Materials disabled in Scene view	Enable from the Scene view’s Effects toolbar
Animation plays only when mouse hovers Scene	Editor isn’t dirty enough to advance _Time.y	Same — enable Animated Materials
Leopard-spot artifacts on the mesh	Texture filter is bilinear	Open the texture, set Filter = Point, sRGB = OFF
Limbs drift / break at extremities	Bone weights stored in vertex colors	Re-bake — bakers write to UV3/UV4, not Mesh.colors
Ghost trails under TAA	MotionVectors pass missing or wrong	Verify the master shader has a MotionVectors pass; URP project asset has Motion Vectors enabled
Sprite billboards stretch when looking up	Camera basis read is taking rows instead of columns	This shouldn’t happen in V1 — file an issue with screenshots
VFX Graph bake captures no particles	The graph did not emit EQVAT output-event samples	Add EQVATVFXGraphCaptureSource, assign the VisualEffect, match the output event filter, and expose eqvat_id, position, color, size, and alive attributes as described in Documentation/VFXGraphOutputEventContract.md
Bake claims success but in-scene render shows old data	Cached material wasn’t replaced	Re-run the bake; bakers force-delete + create
Sprite mesh disappears when camera moves	Mesh bounds too small	The Sprite baker overrides bounds to 1000m; if you copy / instance the mesh, preserve its bounds
Shader error: undeclared identifier 'LerpWhiteTo' in ShadowCaster	URP’s Core.hlsl doesn’t transitively include CommonMaterial.hlsl	Each M_EQVAT_* ShadowCaster pass explicitly includes Packages/com.unity.render-pipelines.core/ShaderLibrary/CommonMaterial.hlsl before Shadows.hlsl. If you add a new master shader, replicate the pattern.