The result of turning off Smooth UVs setting and turning it off in the subdivision settings in render package: Maya Arnold (AutoBump Enabled) ↓↓↓ (I mean even autobump feature catches these artifacts) Maya Arnold (AutoBump Disabled) ↓↓↓ Blender viewport ↓↓↓ Artifact seams are still here…
Different applications use different techniques to calculate the padding. If it looks a little different in the empty space this is unlikely to cause any problems. Generally, Eric's advice makes sense but the padding distance applies more to when the textures are viewed from a distance at lower mipmips. At mip 0 this…